Copying Rows from One Table to Another (INSERT INTO ... select ...) : Column Copy « Insert Update Delete « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » Insert Update Delete » Column Copy 




The number of columns and the column types in the source and destination must match.

SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    EMPNO         NUMBER(3),
  3    ENAME         VARCHAR2(15 BYTE),
  4    HIREDATE      DATE,
  5    ORIG_SALARY   NUMBER(6),
  6    CURR_SALARY   NUMBER(6),
  7    REGION        VARCHAR2(BYTE),
  8    MANAGER_ID    NUMBER(3)
  9  )
 10  /

Table created.

SQL>
SQL> create table job (
  2    EMPNO         NUMBER(3),
  3    jobtitle      VARCHAR2(20 BYTE)
  4  )
  5  /

Table created.

SQL>
SQL> insert into job (EMPNO, Jobtitlevalues (1,'Tester');

row created.

SQL> insert into job (EMPNO, Jobtitlevalues (2,'Accountant');

row created.

SQL> insert into job (EMPNO, Jobtitlevalues (3,'Developer');

row created.

SQL> insert into job (EMPNO, Jobtitlevalues (4,'COder');

row created.

SQL> insert into job (EMPNO, Jobtitlevalues (5,'Director');

row created.

SQL> insert into job (EMPNO, Jobtitlevalues (6,'Mediator');

row created.

SQL> insert into job (EMPNO, Jobtitlevalues (7,'Proffessor');

row created.

SQL> insert into job (EMPNO, Jobtitlevalues (8,'Programmer');

row created.

SQL> insert into job (EMPNO, Jobtitlevalues (9,'Developer');

row created.

SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select from job
  2  /

     EMPNO JOBTITLE
---------- --------------------
         Tester
         Accountant
         Developer
         COder
         Director
         Mediator
         Proffessor
         Programmer
         Developer

rows selected.

SQL>
SQL> INSERT INTO employee (empno)
  2  SELECT empno
  3  FROM job;




SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /

Table dropped.

SQL> drop table job
  2  /

Table dropped.

SQL>
SQL>














4.2.Column Copy
4.2.1.Copying Rows from One Table to Another (INSERT INTO ... select ...)
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