删除指定的内容
SQL> CREATE TABLE project (
2 pro_id NUMBER(4),
3 pro_name VARCHAR2(40),
4 budget NUMBER(9,2),
5 CONSTRAINT project_pk PRIMARY KEY (pro_id)
6 );
Table created.
SQL>
SQL>
SQL> INSERT INTO project(pro_id, pro_name, budget)VALUES (1001, 'A',1912000);
1 row created.
SQL> INSERT INTO project(pro_id, pro_name, budget)VALUES (1002, 'ERP',9999999);
1 row created.
SQL> INSERT INTO project(pro_id, pro_name, budget)VALUES (1003, 'SQL',7000);
1 row created.
SQL> INSERT INTO project(pro_id, pro_name, budget)VALUES (1004, 'CRM',294000);
1 row created.
SQL> INSERT INTO project(pro_id, pro_name, budget)VALUES (1005, 'VPN',415000);
1 row created.
SQL>
SQL>
SQL> SET ECHO ON
SQL> DELETE
2 FROM project
3 WHERE pro_id = 1006
4