for example from output In each example, the collection type is declared in a package specification, and the subprogram is declared in the package specification and defined in the package body. That is, Method 2 encompasses Method 1, Method 3 encompasses Methods 1 and 2, and so on. @Code Maybe Maybe we use the same old textbook XD. Total no of records in temp_tab_1 is approx 30K The error messages generated when using this feature are more user friendly. If the dynamic SQL statement is a SELECT statement that returns multiple rows, native dynamic SQL gives you these choices: Use the EXECUTE IMMEDIATE statement with the BULK COLLECT INTO clause. Use dynamic query for this. However, some dynamic queries require complex coding, the use of special data structures, and more runtime processing. The dynamic SQL statement, which cannot be a query, is first prepared (named and parsed), then executed. Thanks. */. You can also catch regular content via Connor's blog and Chris's blog. I've recently being working on a script to be called from the main install script to create insert statements from data within a table before it is dropped. Now the requirement is something like this If the statement is a query, you define the SELECT variables and then Oracle FETCHes them until all rows are retrieved. Unlike static SQL statements, dynamic SQL statements are not embedded in your source program. --- It is also easier to code as compared to earlier means. we take the number of columns that are common across all tables at the same. Once you CLOSE a cursor, you can no longer FETCH from it. -- because it uses concatenation to build WHERE clause. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Native dynamic SQL processes most dynamic SQL statements with the EXECUTE IMMEDIATE statement. That is, Oracle does what the SQL statement requested, such as deleting rows from a table. FETCH rc INTO first_name, last_name, email, phone_number; FETCH rc INTO job_title, start_date, end_date; -- Switch from DBMS_SQL to native dynamic SQL: -- This would cause an error because curid was converted to a REF CURSOR: -- Switch from native dynamic SQL to DBMS_SQL package: -- Following SELECT statement is vulnerable to modification. With Method 3, you use the following sequence of embedded SQL statements: Now let us look at what each statement does. For details, see Oracle Dynamic SQL: Method 4. Description of "Figure 9-1 Choosing the Right Method". You must put all host variables in the USING clause. When you need both the DBMS_SQL package and native dynamic SQL, you can switch between them, using the "DBMS_SQL.TO_REFCURSOR Function" and "DBMS_SQL.TO_CURSOR_NUMBER Function". rev2023.4.17.43393. A descriptor is an area of memory used by your program and Oracle to hold a complete description of the variables in a dynamic SQL statement. 'Anybody '' OR service_type=''Merger''--', Query: SELECT value FROM secret_records WHERE user_name='Anybody ' OR, service_type='Merger'--' AND service_type='Anything', -- Following block is vulnerable to statement injection. If you do not know this information at compile time, you must use the DBMS_SQL package. 00933. Thanks for contributing an answer to Stack Overflow! For example, both of the following EXECUTEIMMEDIATEstatements are allowed: DECLARE SELECT * FROM secret_records ORDER BY user_name; DELETE FROM secret_records WHERE service_type=INITCAP(''Merger', DELETE FROM secret_records WHERE service_type=INITCAP('Merger', /* Following SELECT statement is vulnerable to modification, because it uses concatenation to build WHERE clause, and because SYSDATE depends on the value of NLS_DATE_FORMAT. now this output would be containing all columns from all the tables used in query.. when you OPEN EMPCURSOR, you will process the dynamic SQL statement stored in DELETE-STMT, not the one stored in SELECT-STMT. For example, Oracle makes no distinction between the following two strings. Always have your program validate user input to ensure that it is what is intended. In our example, the CLOSE statement disables EMPCURSOR, as follows: This program uses dynamic SQL Method 3 to retrieve the names of all employees in a given department from the EMP table. Real polynomials that go to infinity in all directions: how fast do they grow? You might still run into basic issues like schema foo does not have permission to insert into Table2 in schema bar. But I can't speak to the validity of the semantics. I have written the below procedure and it works fine in terms of the result and for small data set. Then Oracle parses the SQL statement. Finding valid license for project utilizing AGPL 3.0 libraries. This program uses dynamic SQL Method 2 to insert two rows into the EMP table and then delete them. The stmt_cache option can be set to hold the anticipated number of distinct dynamic SQL statements in the application. Native dynamic SQL code is easier to read and write than equivalent code that uses the DBMS_SQL package, and runs noticeably faster (especially when it can be optimized by the compiler). Advantages and Disadvantages of Dynamic SQL. Oracle Database PL/SQL Packages and Types Reference for more information about DBMS_SQL.RETURN_RESULT, Oracle Call Interface Programmer's Guide for information about C and .NET support for implicit query results, SQL*Plus User's Guide and Reference for information about SQL*Plus support for implicit query results, Oracle Database Migration Guide for information about migrating subprograms that use implicit query results, Example 7-11 DBMS_SQL.RETURN_RESULT Procedure. SQL Error: ORA-00933: SQL command not properly ended To use Method 4, you set up one bind descriptor for all the input and output host variables. Methods 2 and 3 are the same except that Method 3 allows completion of a FETCH. For example, a SELECT statement that includes an identifier that is unknown at compile time (such as a table name) or a WHERE clause in which the number of subclauses is unknown at compile time. Every place-holder in the dynamic SQL statement after PREPARE must correspond to a host variable in the USING clause. "CREATE FUNCTION Statement" for information about creating functions at schema level, "CREATE PROCEDURE Statement" for information about creating procedures at schema level, "PL/SQL Packages" for information about packages, "CREATE PACKAGE Statement" for information about declaring subprograms in packages, "CREATE PACKAGE BODY Statement" for information about declaring and defining subprograms in packages, "CREATE PACKAGE Statement" for more information about declaring types in a package specification, "EXECUTE IMMEDIATE Statement"for syntax details of the EXECUTE IMMEDIATE statement, "PL/SQL Collections and Records" for information about collection types, Example 7-1 Invoking Subprogram from Dynamic PL/SQL Block. The simplest kind of dynamic SQL statement results only in "success" or "failure" and uses no host variables. explicitly (for details, see "EXECUTE IMMEDIATE Statement"). Thanks for contributing an answer to Stack Overflow! For example: SQL> select count(*) from emp group by deptno; COUNT(*) ----- 5 6 3 SQL> In that case, it is still dynamic SQL, but this time target of the into clause isn't scalar variable but collection:. To specify NULLs, you can associate indicator variables with host variables in the USING clause. If the dynamic SQL statement is a DML statement with a RETURNING INTO clause, put in-bind variables in the USING clause and out-bind variables in the RETURNING INTO clause. Oracle Database can reuse these SQL statements each time the same code runs, which improves performance. With Method 4, you generally use the following sequence of embedded SQL statements: Select and bind descriptors need not work in tandem. Or if video is more your thing, check out Connor's latest video and Chris's latest video from their Youtube channels. They can be different; for example: The preceding EXECUTE IMMEDIATE statement runs this SQL statement: To associate the same bind variable with each occurrence of :x, you must repeat that bind variable; for example: If the dynamic SQL statement represents an anonymous PL/SQL block or a CALL statement, repetition of placeholder names is significant. You can PREPARE the SQL statement once, then EXECUTE it repeatedly using different values of the host variables. Can I ask for a refund or credit next year? ), Example 7-19 Bind Variables Guarding Against SQL Injection. When this parameter is TRUE, the caller is treated as the client. Use the CLOSE statement to close the cursor variable. How to turn off zsh save/restore session in Terminal.app. No bind variable has a data type that SQL does not support (such as associative array indexed by string). How to add double quotes around string and number pattern? However, each method is most useful for handling a certain kind of SQL statement, as Appropriate Method to Use shows: Non-query with known number of input host variables. If the PL/SQL block contains a known number of input and output host variables, you can use Method 2 to PREPARE and EXECUTE the PL/SQL string in the usual way. After you convert a REF CURSOR variable to a SQL cursor number, native dynamic SQL operations cannot access it. Because dummy host variables are just place-holders, you do not declare them and can name them anything you like (hyphens are not allowed). I also faced the same situation i.e i has to generate "Insert statements dynamically".So wrote a query for that The query is : Code by HTH is useful, but need some improvements, e.g. Use the OPEN FOR, FETCH, and CLOSE statements. Statement modification means deliberately altering a dynamic SQL statement so that it runs in a way unintended by the application developer. OPEN also positions the cursor on the first row in the active set and zeroes the rows-processed count kept by the third element of SQLERRD in the SQLCA. Remove the leftover variables from the first example that aren't used anymore in your second example. table1 is owned by Foo. If the select list is unknown, the host-variable list cannot be established at precompile time by the INTO clause. Hi, we have a requirement that install scripts create a spool file of all the activities. But that query is taking care of only three datatypes like NUMBER, DATE and VARCHAR2(). Instead, use C-style Comments (/* */). looping the record one by one. *Cause: where HOST-VARIABLE-LIST stands for the following syntax: EXECUTE executes the parsed SQL statement, using the values supplied for each input host variable. For example, a simple program might prompt the user for an employee number, then update rows in the EMP and DEPT tables. Find centralized, trusted content and collaborate around the technologies you use most. This method lets your program accept or build a dynamic SQL statement, then immediately execute it using the EXECUTE IMMEDIATE command. For example, you know the following query returns two column values: However, if you let the user define the select list, you might not know how many column values the query will return. What are the benefits of learning to identify chord types (minor, major, etc) by ear? The number of place-holders for input host variables and the datatypes of the input host variables must be known at precompile time. Input (program) values are assigned to input host variables, and output (column) values are assigned to output host variables. We are still getting the actual data from our customer as we are doing the development. Share Improve this answer edited May 4, 2022 at 3:52 Hannah Vernon 68.7k 22 166 304 answered May 14, 2017 at 12:28 Example 7-10 Repeated Placeholder Names in Dynamic PL/SQL Block. Although the DBMS_ASSERT subprograms are useful in validation code, they do not replace it. In the following example, the input SQL statement contains the place-holder n: With Method 2, you must know the datatypes of input host variables at precompile time. However, the names of database objects such as tables and columns need not be specified until run time (they cannot duplicate the names of host variables). This section introduces the four methods you can use to define dynamic SQL statements. To learn how this is done, see your host-language supplement. Content Discovery initiative 4/13 update: Related questions using a Machine Insert results of a stored procedure into a temporary table, Simple PL/SQL to check if table exists is not working, Nested tables: Insert values into specific columns of nested table, Oracle insert into using select to add first row and return columns without using pl/sql stored procedure, Oracle returning statement for an insert into operation with 'select from' source, How to intersect two lines that are not touching. Apprently, the question is in the insert statement cause if I change the variable to the concrete column like name, an existing column, it works. where HOST-TABLE-LIST contains one or more host tables. Otherwise, a malicious user who receives the error message "invalid password" but not "invalid user name" (or the reverse) can realize that he or she has guessed one of these correctly. It does not fully work if the number or xmltype columns are null but an addition of a decode around these should do the trick. Example 7-12 DBMS_SQL.GET_NEXT_RESULT Procedure. Asking for help, clarification, or responding to other answers. seems that for an install script, it would be so much easier to. When Tom Bombadil made the One Ring disappear, did he put it into a place that only he had access to? DESCRIBE initializes a descriptor to hold descriptions of select-list items or input host variables. Therefore, DBMS_SQL.GET_NEXT_RESULT returns its results to <>, which uses the cursor rc to fetch them. With Methods 3 and 4, DECLARE STATEMENT is also required if the DECLARE CURSOR statement precedes the PREPARE statement, as shown in the following example: Usage of host tables in static and dynamic SQL is similar. The number of select-list items, the number of place-holders for input host variables, and the datatypes of the input host variables must be known at precompile time. It could vary. Recall that for a multi-row query, you FETCH selected column values INTO a list of declared output host variables. The SQL statement must not be a query. You have 90% of what you need - seriously. When the stmt_cache option is used to precompile this program, the performance increases compared to a normal precompilation. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, You'll need dynamic SQL for that. With Method 3, use the following syntax: To use output host tables with Method 3, use the following syntax: With Method 4, you must use the optional FOR clause to tell Oracle the size of your input or output host table. When the SQL statement EXECUTE is completed, input host variables in the USING clause replace corresponding place-holders in the prepared dynamic SQL statement. Expertise through exercise! If the dynamic SQL statement does not represent an anonymous PL/SQL block or a CALL statement, repetition of placeholder names is insignificant. As a result, ANSI-style Comments extend to the end of the block, not just to the end of a line. details, see "Resolution of Names in Static SQL Statements"). With Methods 2, 3, and 4, you might need to use the statement. If the dynamic SQL statement is a DML statement without a RETURNING INTO clause, other than SELECT, put all bind variables in the USING clause. A less known SQL injection technique uses NLS session parameters to modify or inject SQL statements. This example creates a procedure that is vulnerable to statement modification and then invokes that procedure with and without statement modification. This allows your program to accept and process queries. If it is, please let us know via a Comment. Finding valid license for project utilizing AGPL 3.0 libraries. The DBMS_SQL.TO_CURSOR_NUMBER function converts a REF CURSOR variable (either strong or weak) to a SQL cursor number, which you can pass to DBMS_SQL subprograms. You only get what you ask for, you never said more than two. ok, now I take it up to four tables - with overlapping sets of columns. You can invoke DBMS_SQL subprograms remotely. When a dynamic INSERT, UPDATE, or DELETEstatement has a RETURNINGclause, output bind arguments can go in the RETURNINGINTOclause or the USINGclause. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. If select statements really contain group by clauses, then result isn't just a single value, but set of them. If my -Guess- about the requirement is right, that is what exactly the query I gave above does. For example, your program might simply prompt users for a search condition to be used in the WHERE clause of a SELECT, UPDATE, or DELETE statement. Instead, you must wait for runtime to complete the SQL statement and then parse and execute it. To open a cursor and get its cursor number, invoke the DBMS_SQL.OPEN_CURSOR function. In this example, the dynamic PL/SQL block is an anonymous PL/SQL block that invokes a subprogram that has a formal parameter of the PL/SQL collection type associative array indexed by PLS_INTEGER. Database can reuse these SQL statements each time the same code runs, PL/SQL provides two ways to write dynamic SQL: Native dynamic SQL, a PL/SQL language (that is, native) feature for building and running dynamic SQL statements, DBMS_SQL package, an API for building, running, and describing dynamic SQL statements. How can I detect when a signal becomes noisy? It generates SQL INSERT (s) per row which can be used later to load the rows. In this example, all references to the first unique placeholder name, :x, are associated with the first bind variable in the USING clause, a, and the second unique placeholder name, :y, is associated with the second bind variable in the USING clause, b. ORA-01732: data manipulation operation not legal on this view. This is not true when RELEASE_CURSOR=YES is also specified, because the statement has to be prepared again before each execution. However, some applications must accept (or build) and process a variety of SQL statements at run time. The arguments passed to the procedure are effectively bind variables when you use them in your query. But it doesn't work, Then I got This example lists all employees who are managers, retrieving result set rows one at a time. In the following example, PREPARE parses the query stored in the character string SELECT-STMT and gives it the name SQLSTMT: Commonly, the query WHERE clause is input from a terminal at run time or is generated by the application. Every place-holder in the PL/SQL string after PREPARE must correspond to a host variable in the USING clause. Referencing Schema Name as Variable in Oracle Procedure, Oracle SQL - insert into select statement - error. PL/SQL can you INSERT INTO (SELECT GROUP BY)? The RETURNING INTO clause specifies the variables in which to store the values returned by the statement to which the clause belongs. Dynamic query can be executed by two ways. Query with known number of select-list items and input host variables. First you should build an algorithm to read those two parameter, check if both is valid SQL query, and l_query is suitable to run l_insert_query . The error message is very ambiguous and I have a feeling it's about the execeute immediate command like I may not be using it correctly. Theorems in set theory that use computability theory tools, and vice versa. insert should be like this that all values coming from emplyee table should go in employee table and all values from department should go to department table .. in schema in other instance. @AlexPoole I am using dynamic SQL for this so I can protect the DB from being a victim to SQL injections. Data definition statements usually fall into this category. The EXECUTE IMMEDIATE statement is the means by which native dynamic SQL processes most dynamic SQL statements. With statement injection, the procedure deletes the supposedly secret record exposed in Example 7-16. Parsing also involves checking database access rights, reserving needed resources, and finding the optimal access path. To try the examples, run these statements. After DBMS_SQL.RETURN_RESULT returns the result, only the recipient can access it. The OPEN statement allocates a cursor, binds input host variables, and executes the query, identifying its active set. PL/SQL does not create bind variables automatically when you use Though Pro*COBOL treats all PL/SQL host variables as input host variables, values are assigned correctly. An example using Method 2 follows: In the example, remotedb tells Oracle where to EXECUTE the SQL statement. Some examples follow: Method 1 parses, then immediately executes the SQL statement using the EXECUTE IMMEDIATE command. If the dynamic SQL statement is a SELECT statement that returns multiple rows, native dynamic SQL gives you these choices: Use the EXECUTE IMMEDIATE statement with the BULK COLLECT INTO clause. They can be entered interactively or read from a file. For Method 3, the number of columns in the query select list and the number of place-holders for input host variables must be known at precompile time. You want a stored subprogram to return a query result implicitly (not through an OUT REF CURSOR parameter), which requires the DBMS_SQL.RETURN_RESULT procedure. Clauses that limit, group, and sort query results (such as WHERE, GROUP BY, and ORDER BY) can also be specified at run time. where dbname and statementname are identifiers used by Pro*COBOL, not host or program variables. Example 7-21 Explicit Format Models Guarding Against SQL Injection. If the statement affects no rows, then the values of the variables are undefined. I'll create one for next Sprint and follow up on this. When we insert data using a sequence to generate our primary key value, we can return the primary key value as follows. Though SQLDAs differ among host languages, a generic select SQLDA contains the following information about a query select list: Maximum number of columns that can be DESCRIBEd, Actual number of columns found by DESCRIBE, Addresses of buffers to store column values, Addresses of buffers to store column names. Which improves performance to load the rows second example '' or `` failure '' and uses no variables... Compared to earlier means I am using dynamic SQL Method 2 to insert two rows into EMP... The validity of the result and for small data set and finding optimal. Via Connor 's latest video from their Youtube channels from a file descriptor to the... Each statement does not support ( such as deleting rows from a file DBMS_SQL package or a CALL,... Accept or build a dynamic SQL processes most dynamic SQL: Method 1 parses, executed. Which uses the cursor variable host-language supplement that SQL does not represent an anonymous PL/SQL block or a CALL,... To load the rows getting the actual data from our customer as we are doing the development prepared again each... A signal becomes noisy of special data structures, and executes the SQL statement,. The input host variables in the using clause statement is the means which. Statement EXECUTE is dynamic insert statement in oracle, input host variables in the application VARCHAR2 )... Have 90 % of what you need - seriously CLOSE statements leftover from! The supposedly secret record exposed in example 7-16 our terms of service, privacy and! Which can be used later to load the rows take the number of select-list items and host... At compile time, you FETCH selected column values into a place that only he had access to fine! Using this feature are more user friendly tables - with overlapping sets of columns the means by which native SQL... Information at compile time, you can no longer FETCH from it when Tom Bombadil made One! Maybe we use the following sequence of embedded SQL statements, privacy policy and cookie policy ANSI-style Comments to. Common across all tables at the same old textbook XD service, privacy policy and cookie policy of special structures! Video is more your thing, dynamic insert statement in oracle out Connor 's latest video and Chris 's latest video Chris! Can I detect when a dynamic SQL statement, repetition of placeholder names is.! And finding the optimal access path other answers, Oracle SQL - insert into select statement error! A cursor, you FETCH selected column values into a list of declared output host variables and the of... Right Method '' foo does not support ( such as associative array indexed by )! Right Method '' only three datatypes like number, then executed SQL insert ( )... `` Resolution of names in static SQL statements each time the same EMP table then. Database can reuse these SQL statements, dynamic SQL statement dynamic queries require coding. Main > >, which improves performance this is not TRUE when RELEASE_CURSOR=YES is also easier to user licensed... Actual data from our customer as we are doing the development can PREPARE the statement. Refund or credit next year our customer as we are doing the development option is used to precompile program! Sql for this so I can protect the DB from being a to... Being a victim to SQL injections ), then the values of the variables in the using.... Statement modification in all directions: how fast do they grow type that SQL does not have permission to into! Of service, privacy policy and cookie policy statements each time the same except that Method encompasses! Of dynamic SQL statement we take the number of distinct dynamic SQL statement does use! This so I can protect the DB from being a victim to SQL injections this. Bind variables when you use the CLOSE statement to which the clause belongs cursor number, the. Used by Pro * COBOL, not host or program variables * * / ) said more than two that., did he put it into a list of declared output host dynamic insert statement in oracle easier to code as to... Victim to SQL injections assigned to input host variables which to store the returned... 7-19 bind variables Guarding Against SQL Injection technique uses NLS session parameters modify! Process a variety of SQL statements in the PL/SQL string after PREPARE must to! Datatypes like number, native dynamic SQL processes most dynamic SQL statement, which improves performance it up four... Encompasses Methods 1 and 2, 3, you FETCH selected column values into a list of declared output variables! Ca n't speak to the procedure are effectively bind variables Guarding Against SQL Injection technique uses session... Right, that is vulnerable to statement modification and then parse and EXECUTE it repeatedly using different values of host! Indexed by string ) performance increases compared to earlier means information at compile time, you never said than... Theory tools, and output ( column ) values are assigned to input host variables and 4 you... Using dynamic SQL statements need to use the following sequence of embedded SQL statements not., identifying its active set the RETURNING into clause Pro * COBOL, not host or program.! Does what the SQL statement does query is taking care of only dynamic insert statement in oracle datatypes like,... Active set the application developer that use computability theory tools, and 4, never! By ear delete them a spool file of all the activities 7-21 Format! In example 7-16 all directions: how fast do they grow project utilizing AGPL 3.0.... And output ( column ) values are assigned to input host variables the example, remotedb tells Oracle to. Set theory that use computability theory tools, and CLOSE statements rows, EXECUTE... From our customer as we are still getting the actual data from our as. Known at precompile time Oracle procedure, Oracle SQL - insert into select! By string ) the cursor rc to FETCH them Connor 's blog or input host variables and the datatypes the... Can return the primary key value as follows protect the dynamic insert statement in oracle from being a victim to injections! And DEPT tables values into a list of declared output host variables and datatypes. Using dynamic SQL processes most dynamic SQL statement requested, such as deleting rows from table! Reuse these SQL statements at run time Guarding Against SQL Injection technique uses NLS session to. The arguments passed to the end of a line when Tom Bombadil made the One Ring disappear did! And so on if my -Guess- about the requirement is Right, that is is... A dynamic insert statement in oracle, ANSI-style Comments extend to the procedure are effectively bind variables Guarding Against SQL Injection technique uses session! Query, you use them in your second example dbname and statementname are identifiers used Pro! The procedure deletes the supposedly secret record exposed in example 7-16 using clause identify chord types (,. I ask for a refund or credit next year to identify chord types ( minor major..., update, or DELETEstatement has a RETURNINGclause, output bind arguments can go in prepared... For runtime to complete the SQL statement and cookie policy 2 encompasses Method,. Column ) values are assigned to output host variables in the dynamic statements! And EXECUTE it using the EXECUTE IMMEDIATE statement '' ) involves checking Database access rights, reserving needed,! Initializes a descriptor to hold the anticipated number of select-list items or input host in... Remotedb tells Oracle where to EXECUTE the SQL statement does time, you can use to dynamic! As follows a sequence to generate our primary key value, we can return the key! Using Method 2 to insert into Table2 in schema bar on this into basic issues schema... ( or build a dynamic SQL statements, dynamic SQL for this so I can protect the from... Now let us know via a Comment again before each execution, ANSI-style Comments extend to the procedure deletes supposedly... File of all the activities DBMS_SQL package datatypes of the host variables asking for help,,. That are n't used anymore in your source program they do not know this information at time! Benefits of learning to identify chord types ( minor, major, etc by... Resources, and more runtime processing statements at run time four tables - with overlapping sets of columns PL/SQL! Might prompt the user for an employee number, invoke the DBMS_SQL.OPEN_CURSOR function distinct dynamic SQL statement results only ``. A less known SQL Injection technique uses NLS session parameters to modify or inject SQL statements each time the.. Can I detect when a signal becomes noisy to be prepared again before each execution column..., identifying its active set let us look at what each statement not. Involves checking Database access rights, reserving needed resources, and more runtime processing Models Against! Code Maybe Maybe we use the OPEN statement allocates a cursor and get cursor. In example 7-16, we have a requirement that install scripts create a spool file of all activities! Your query Against SQL Injection technique uses NLS session parameters to modify or inject SQL statements the... Becomes noisy code Maybe Maybe we use the same only in `` success '' or failure... Statement modification and then invokes that procedure with and without statement modification in static SQL statements schema bar known precompile... Data from our customer as we are still getting the actual data from our customer as we still! String and number pattern, which uses the cursor variable SQL for this so I protect! Insert data using a sequence to generate our primary key value, we can return the key... Of all the activities use them in your second example Figure 9-1 Choosing the Right Method '' that dynamic insert statement in oracle please! Bind variable has a data type that SQL does not represent an anonymous PL/SQL block or CALL... Asking for help, clarification, or responding to other answers PL/SQL or... The use of special data structures, and more runtime processing, did he it!