TRUNCATE TABLE Demo : TRUNCATE TABLE « Table « Oracle PL / SQL

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Oracle PL / SQL » Table » TRUNCATE TABLE 




TRUNCATE TABLE Demo
  
delete from PURCHASE;
SQL>
SQL> CREATE TABLE purchase (
  2       product_name  VARCHAR2(25),
  3       quantity      NUMBER(4,2),
  4       purchase_date DATE,
  5       salesperson   VARCHAR2(3)
  6       );

Table created.

SQL>
SQL> INSERT INTO purchase VALUES ('A',   1,  '14-JUL-03', 'CA');

row created.

SQL> INSERT INTO purchase VALUES ('B',   75'14-JUL-03', 'BB');

row created.

SQL> INSERT INTO purchase VALUES ('C',   2,  '14-JUL-03', 'GA');

row created.

SQL> INSERT INTO purchase VALUES ('D',   8,  '15-JUL-03', 'GA');

row created.

SQL> INSERT INTO purchase VALUES ('A',   20'15-JUL-03', 'LB');

row created.

SQL> INSERT INTO purchase VALUES ('B',   2,  '16-JUL-03', 'CA');

row created.

SQL> INSERT INTO purchase VALUES ('C',   25'16-JUL-03', 'LB');

row created.

SQL> INSERT INTO purchase VALUES ('D',   2,  '17-JUL-03', 'BB');

row created.

SQL>
SQL> SELECT FROM purchase;

PRODUCT_NAME                QUANTITY PURCHASE_ SAL
------------------------- ---------- --------- ---
A                                  1 14-JUL-03 CA
B                                 75 14-JUL-03 BB
C                                  2 14-JUL-03 GA
D                                  8 15-JUL-03 GA
A                                 20 15-JUL-03 LB
B                                  2 16-JUL-03 CA
C                                 25 16-JUL-03 LB
D                                  2 17-JUL-03 BB

rows selected.

SQL>
SQL>
SQL>
SQL> TRUNCATE TABLE purchase;

Table truncated.

SQL>
SQL> SELECT FROM purchase;

no rows selected

SQL>
SQL>
SQL> drop table purchase;

Table dropped.

SQL>

   
  














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1.Truncate a table
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