| Basic Delete Statements |
Delete All Rows |
DELETE <table_name>
or
DELETE FROM <table_name>; |
CREATE TABLE t AS
SELECT *
FROM all_tables;
SELECT COUNT(*)
FROM t;
DELETE FROM t;
COMMIT;
SELECT COUNT(*)
FROM t; |
Delete Selective Rows |
DELETE FROM <table_name>
WHERE <condition>; |
CREATE TABLE t AS
SELECT *
FROM all_tables;
SELECT COUNT(*)
FROM t;
DELETE FROM t
WHERE table_name LIKE '%MAP';
COMMIT;
SELECT COUNT(*)
FROM t; |
Delete From A SELECT Statement |
DELETE FROM (<SELECT Statement>); |
CREATE TABLE t AS
SELECT *
FROM all_tables;
SELECT COUNT(*)
FROM t;
DELETE FROM (SELECT * FROM t WHERE table_name LIKE '%MAP');
SELECT COUNT(*)
FROM t; |
Delete With Returning Clause |
DELETE FROM (<SELECT Statement>); |
CREATE TABLE t AS
SELECT *
FROM all_tables;
set serveroutput on
DECLARE
r urowid;
BEGIN
DELETE FROM t
WHERE rownum = 1
RETURNING rowid INTO r;
dbms_output.put_line(r);
END;
/ |
| Delete Restricted To A Partition |
DELETE FROM <table_name>
PARTITION <partition_name>; |
| DELETE FROM sales PARTITION (q1_2001_invoices); |
| Delete From A Remote Database |
DELETE FROM
<table_name>@<database_link> |
| DELETE FROM t@remote_db; |
