Oracle RETURNING INTO 用法示例
2011-08-13 19:20
295 查看
The
When we insert data using a sequence to generate our primary key value, we can return the primary key value as follows.
SET SERVEROUTPUT ON
DECLARE
l_id t1.id%TYPE;
BEGIN
INSERT INTO t1 VALUES (t1_seq.nextval, 'FOUR')
RETURNING id INTO l_id;
COMMIT;
DBMS_OUTPUT.put_line('ID=' || l_id);
END;
/
ID=4
PL/SQL procedure successfully completed.
The syntax is also available for update and delete statements.
SET SERVEROUTPUT ON
DECLARE
l_id t1.id%TYPE;
BEGIN
UPDATE t1
SET description = description
WHERE description = 'FOUR'
RETURNING id INTO l_id;
DBMS_OUTPUT.put_line('UPDATE ID=' || l_id);
DELETE FROM t1
WHERE description = 'FOUR'
RETURNING id INTO l_id;
DBMS_OUTPUT.put_line('DELETE ID=' || l_id);
COMMIT;
END;
/
UPDATE ID=4
DELETE ID=4
PL/SQL procedure successfully completed.
When DML affects multiple rows we can still use the
SET SERVEROUTPUT ON
DECLARE
TYPE t_tab IS TABLE OF t1.id%TYPE;
l_tab t_tab;
BEGIN
UPDATE t1
SET description = description
RETURNING id BULK COLLECT INTO l_tab;
FOR i IN l_tab.first .. l_tab.last LOOP
DBMS_OUTPUT.put_line('UPDATE ID=' || l_tab(i));
END LOOP;
COMMIT;
END;
/
UPDATE ID=1
UPDATE ID=2
UPDATE ID=3
PL/SQL procedure successfully completed.
SQL>
We can also use the
SET SERVEROUTPUT ON
DECLARE
TYPE t_desc_tab IS TABLE OF t1.description%TYPE;
TYPE t_tab IS TABLE OF t1%ROWTYPE;
l_desc_tab t_desc_tab := t_desc_tab('FIVE', 'SIX', 'SEVEN');
l_tab t_tab;
BEGIN
FORALL i IN l_desc_tab.first .. l_desc_tab.last
INSERT INTO t1 VALUES (t1_seq.nextval, l_desc_tab(i))
RETURNING id, description BULK COLLECT INTO l_tab;
FOR i IN l_tab.first .. l_tab.last LOOP
DBMS_OUTPUT.put_line('INSERT ID=' || l_tab(i).id ||
' DESC=' || l_tab(i).description);
END LOOP;
COMMIT;
END;
/
INSERT ID=5 DESC=FIVE
INSERT ID=6 DESC=SIX
INSERT ID=7 DESC=SEVEN
PL/SQL procedure successfully completed.
SQL>
This functionality is also available from dymanic SQL.
SET SERVEROUTPUT ON
DECLARE
TYPE t_tab IS TABLE OF t1.id%TYPE;
l_tab t_tab;
BEGIN
EXECUTE IMMEDIATE 'UPDATE t1
SET description = description
RETURNING id INTO :l_tab'
RETURNING BULK COLLECT INTO l_tab;
FOR i IN l_tab.first .. l_tab.last LOOP
DBMS_OUTPUT.put_line('UPDATE ID=' || l_tab(i));
END LOOP;
COMMIT;
END;
/
UPDATE ID=1
UPDATE ID=2
UPDATE ID=3
PL/SQL procedure successfully completed.
SQL>
For more information see:
RETURNING INTO Clause
Hope this helps.
RETURNING INTOclause allows us to return column values for rows affected by DML statements. The following test table is used to demonstrate this clause.
DROP TABLE t1; DROP SEQUENCE t1_seq; CREATE TABLE t1 ( id NUMBER(10), description VARCHAR2(50), CONSTRAINT t1_pk PRIMARY KEY (id) ); CREATE SEQUENCE t1_seq; INSERT INTO t1 VALUES (t1_seq.nextval, 'ONE'); INSERT INTO t1 VALUES (t1_seq.nextval, 'TWO'); INSERT INTO t1 VALUES (t1_seq.nextval, 'THREE'); COMMIT;
When we insert data using a sequence to generate our primary key value, we can return the primary key value as follows.
SET SERVEROUTPUT ON
DECLARE
l_id t1.id%TYPE;
BEGIN
INSERT INTO t1 VALUES (t1_seq.nextval, 'FOUR')
RETURNING id INTO l_id;
COMMIT;
DBMS_OUTPUT.put_line('ID=' || l_id);
END;
/
ID=4
PL/SQL procedure successfully completed.
The syntax is also available for update and delete statements.
SET SERVEROUTPUT ON
DECLARE
l_id t1.id%TYPE;
BEGIN
UPDATE t1
SET description = description
WHERE description = 'FOUR'
RETURNING id INTO l_id;
DBMS_OUTPUT.put_line('UPDATE ID=' || l_id);
DELETE FROM t1
WHERE description = 'FOUR'
RETURNING id INTO l_id;
DBMS_OUTPUT.put_line('DELETE ID=' || l_id);
COMMIT;
END;
/
UPDATE ID=4
DELETE ID=4
PL/SQL procedure successfully completed.
When DML affects multiple rows we can still use the
RETURNING INTO, but now we must return the values into a collection using the
BULK COLLECTclause.
SET SERVEROUTPUT ON
DECLARE
TYPE t_tab IS TABLE OF t1.id%TYPE;
l_tab t_tab;
BEGIN
UPDATE t1
SET description = description
RETURNING id BULK COLLECT INTO l_tab;
FOR i IN l_tab.first .. l_tab.last LOOP
DBMS_OUTPUT.put_line('UPDATE ID=' || l_tab(i));
END LOOP;
COMMIT;
END;
/
UPDATE ID=1
UPDATE ID=2
UPDATE ID=3
PL/SQL procedure successfully completed.
SQL>
We can also use the
RETURNING INTOclause in combination with bulk binds.
SET SERVEROUTPUT ON
DECLARE
TYPE t_desc_tab IS TABLE OF t1.description%TYPE;
TYPE t_tab IS TABLE OF t1%ROWTYPE;
l_desc_tab t_desc_tab := t_desc_tab('FIVE', 'SIX', 'SEVEN');
l_tab t_tab;
BEGIN
FORALL i IN l_desc_tab.first .. l_desc_tab.last
INSERT INTO t1 VALUES (t1_seq.nextval, l_desc_tab(i))
RETURNING id, description BULK COLLECT INTO l_tab;
FOR i IN l_tab.first .. l_tab.last LOOP
DBMS_OUTPUT.put_line('INSERT ID=' || l_tab(i).id ||
' DESC=' || l_tab(i).description);
END LOOP;
COMMIT;
END;
/
INSERT ID=5 DESC=FIVE
INSERT ID=6 DESC=SIX
INSERT ID=7 DESC=SEVEN
PL/SQL procedure successfully completed.
SQL>
This functionality is also available from dymanic SQL.
SET SERVEROUTPUT ON
DECLARE
TYPE t_tab IS TABLE OF t1.id%TYPE;
l_tab t_tab;
BEGIN
EXECUTE IMMEDIATE 'UPDATE t1
SET description = description
RETURNING id INTO :l_tab'
RETURNING BULK COLLECT INTO l_tab;
FOR i IN l_tab.first .. l_tab.last LOOP
DBMS_OUTPUT.put_line('UPDATE ID=' || l_tab(i));
END LOOP;
COMMIT;
END;
/
UPDATE ID=1
UPDATE ID=2
UPDATE ID=3
PL/SQL procedure successfully completed.
SQL>
For more information see:
RETURNING INTO Clause
Hope this helps.
相关文章推荐
- Oracle RETURNING INTO 用法示例
- Oracle RETURNING INTO 用法示例
- Oracle DML 子句 RETURNING INTO 用法示例
- Oracle returning into 用法
- Oracle merge into用法以及相关例子示例
- Oracle MERGE INTO的用法示例介绍
- oracle returning into用法
- oracle中游标的用法总结及示例
- 创建表结构相同的表,表结构相同的表之间复制数据,Oracle 中 insert into XXX select from 的用法
- oracle returning into
- oracle 之 merge into 的用法
- oracle merge into 用法详解
- Oracle merge into的用法,以及MySQL的相同功能语句
- oracle merge into 用法详解
- oracle merge into 用法详解
- ORACLE merge Into 独立使用的用法
- oracle-merge用法详解(以示例说明)
- Oracle_merge_into 用法详解
- oracle中to_date详细用法示例(oracle日期格式转换)