Call EXECUTE IMMEDIATE in Pl/SQL block : Execute immediate « PL SQL Statements « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » PL SQL Statements » Execute immediate

22. 16. 2. Call EXECUTE IMMEDIATE in Pl/SQL block


SQL>

SQL> CREATE OR REPLACE FUNCTION value_in (varname IN VARCHAR)

  2     RETURN VARCHAR2

  3  IS

  4     retval VARCHAR2(2000);

  5  BEGIN

  6     EXECUTE IMMEDIATE 'BEGIN :val := ' || varname || '; END;' USING OUT retval;

  7     RETURN retval;

  8  END;

  9  /



Function created.



SQL>

22. 16. Execute immediate
	22. 16. 1.	Simple EXECUTE IMMEDIATE
	22. 16. 2.	Call EXECUTE IMMEDIATE in Pl/SQL block
	22. 16. 3.	Execute sql statement in a procedure
	22. 16. 4.	'execute immediate in' action
	22. 16. 5.	Define a procedure to drop a database object
	22. 16. 6.	Create a function to count table row
	22. 16. 7.	Use procedure to create an index dynamically
	22. 16. 8.	Call function and get result by using 'EXECUTE IMMEDIATE'
	22. 16. 9.	EXECUTE IMMEDIATE dynamic sql to alter session
	22. 16. 10.	Use 'execute immediate' to run a insert statement
	22. 16. 11.	select into rowtype then use it in 'execute immediate'
	22. 16. 12.	Quotation string
	22. 16. 13.	Use 'EXECUTE IMMEDIATE' to execute an update statement
	22. 16. 14.	Wrap 'EXECUTE IMMEDIATE' for current user
	22. 16. 15.	Wrap statement with 'BEGIN...END'
	22. 16. 16.	Catch exception from 'EXECUTE IMMEDIATE'
	22. 16. 17.	EXECUTE IMMEDIATE USING IN
	22. 16. 18.	Drop user, create user and grant permission with PL/SQL code
	22. 16. 19.	execute immediate into
	22. 16. 20.	Update row with 'execute immediate'

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