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Oracle PL/SQL Tutorial/Insert Update Delete/Insert Select - История изменений
2026-05-24T00:04:19Z
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в 13:45, 26 мая 2010
2010-05-26T13:45:46Z
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Admin: 1 версия
2010-05-26T10:07:40Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== Insert bulk by insert ... into ... select==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="sql"><br />
SQL><br />
SQL> CREATE TABLE project (<br />
2 pro_id NUMBER(4),<br />
3 pro_name VARCHAR2(40),<br />
4 budget NUMBER(9,2),<br />
5 CONSTRAINT project_pk PRIMARY KEY (pro_id)<br />
6 );<br />
Table created.<br />
SQL><br />
SQL><br />
SQL> INSERT INTO project(pro_id, pro_name, budget)VALUES (1001, "A",12345);<br />
1 row created.<br />
SQL> INSERT INTO project(pro_id, pro_name, budget)VALUES (1002, "ERP",23456);<br />
1 row created.<br />
SQL> INSERT INTO project(pro_id, pro_name, budget)VALUES (1003, "SQL",34567);<br />
1 row created.<br />
SQL> INSERT INTO project(pro_id, pro_name, budget)VALUES (1004, "CRM",45678);<br />
1 row created.<br />
SQL> INSERT INTO project(pro_id, pro_name, budget)VALUES (1005, "VPN",56789);<br />
1 row created.<br />
SQL><br />
SQL><br />
SQL> SET ECHO ON<br />
SQL> INSERT INTO PROJECT (pro_id, pro_name)<br />
2 SELECT pro_id+8000,<br />
3 SUBSTR(pro_name,1,31) || " Overhead"<br />
4 FROM project;<br />
5 rows created.<br />
SQL><br />
SQL><br />
SQL><br />
SQL> drop table project ;<br />
Table dropped.</source><br />
<br />
<br />
<br />
== Insert into select==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="sql"><br />
SQL><br />
SQL><br />
SQL> CREATE TABLE employee (<br />
2 id number,<br />
3 name varchar(100),<br />
4 birth_date date,<br />
5 gender varchar2(30) );<br />
Table created.<br />
SQL><br />
SQL><br />
SQL> INSERT INTO employee (id,name,birth_date,gender )<br />
2 SELECT 200,"Chris",NULL,"MALE" from DUAL;<br />
1 row created.<br />
SQL><br />
SQL><br />
SQL> drop table employee;<br />
Table dropped.</source><br />
<br />
<br />
<br />
== Insert into select with where clause==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="sql"><br />
SQL><br />
SQL> CREATE TABLE employee (<br />
2 id number,<br />
3 name varchar(100),<br />
4 birth_date date,<br />
5 gender varchar2(30) );<br />
Table created.<br />
SQL><br />
SQL> INSERT INTO employee (id,name,birth_date,gender ) SELECT 300,"H",NULL,"MALE" from dual d<br />
2 where not exists (SELECT 1 FROM employee x WHERE x.id = "300" );<br />
1 row created.<br />
SQL><br />
SQL> select * from employee;<br />
ID<br />
------<br />
NAME<br />
----------------------------------------------------------------------<br />
BIRTH_DATE GENDER<br />
---------- ------------------------------<br />
300<br />
H<br />
null MALE<br />
<br />
1 row selected.<br />
SQL><br />
SQL><br />
SQL> drop table employee;<br />
Table dropped.</source></div>
Admin