Plsql program for updating rodrigo farah dating coach
emp_last_name); END; / CREATE TABLE employees_temp AS SELECT first_name, last_name FROM employees; DECLARE x VARCHAR2(20) := 'my_first_name'; y VARCHAR2(25) := 'my_last_name'; BEGIN INSERT INTO employees_temp VALUES(x, y); UPDATE employees_temp SET last_name = x WHERE first_name = y; DELETE FROM employees_temp WHERE first_name = x; COMMIT; END; / statement that is explained in "Using the EXECUTE IMMEDIATE Statement in PL/SQL".
Please help me on this Sorry i just edited , now there is only deptno 20, but how to insert if many comm= null gets updated..
CREATE OR REPLACE TRIGGER Department Autonumber Trigger 2 BEFORE INSERT ON Department 3 FOR EACH ROW 4 BEGIN 5 SELECT Department IDSeq. Department ID FROM DUAL; 7 END; 8 / Trigger created.
changed_buff.count INSERT INTO changed VALUES changed_buff( i ); END; / can contain ten thousands and more rows, then this procedure might be slow, becasue it will consume a huge amount of PGA memory.
In such a case, an another approach with bulk collectiong in chunks is required.
*/ EXCEPTION /* Exception handling section: error handling statements go here. The executable section also contains constructs such as assignments, branches, loops, procedure calls, and triggers, which are all described below (except triggers). C style comments ( or by putting the code in a file and invoking the file in the various ways we learned in Getting Started With Oracle.
By extending SQL, PL/SQL offers a unique combination of power and ease of use.In addition to static SQL discussed in this chapter, PL/SQL also supports dynamic SQL, which enables you to execute SQL data definition, data control, and session control statements dynamically.See Chapter 7, "Performing SQL Operations with Native Dynamic SQL".Every variable has a specific type associated with it. In this case, it is essential that the variable have the same type as the relation column.If there is any type mismatch, variable assignments and comparisons may not work the way you expect.
You can find these scripts in the PL/SQL demo directory.