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Oracle PLSQL Demo - 22.查看字符串的长度[lengthb, length],判断字符串是否包含中文
--Count the length of stringselect lengthb('select * from scott.emp') as countted_by_byte, length('select * from scott.emp') as countted_by_char from ...
分类:数据库   时间:2015-06-30 00:00:51    阅读次数:507
Oracle PLSQL Demo - 03.流程判断[IF ELEIF ELSE]
declare v_job varchar2(50) := 'Programmer'; v_sal number;begin if v_job = 'Programmer' then v_sal := 6000; elsif v_job = 'Senior Pr...
分类:数据库   时间:2015-06-30 00:00:08    阅读次数:488
Oracle PLSQL Demo - 18.01管道function[查询零散的字段组成list管道返回]
--PACKAGECREATE OR REPLACE PACKAGE test_141213 is TYPE type_ref IS record( ENAME VARCHAR2(20), WORK_CITY VARCHAR2(20), SAL NUM...
分类:数据库   时间:2015-06-29 23:59:33    阅读次数:284
Oracle PLSQL Demo - 16.弱类型REF游标[没有指定查询类型,已指定返回类型]
declare Type ref_cur_variable IS REF cursor; cur_variable ref_cur_variable; rec_emp scott.emp%RowType; v_sql varchar2(100) := 'select * fr...
分类:数据库   时间:2015-06-29 23:59:12    阅读次数:294
Oracle PLSQL Demo - 19.管道function[查询整表组成list管道返回]
create or replace function function_demo RETURN emp PIPELINED as Type ref_cur_emp IS REF CURSOR RETURN emp%RowType; cur_emp ref_cur_e...
分类:数据库   时间:2015-06-29 23:57:11    阅读次数:186
Oracle PLSQL Demo - 05.WHILE循环[WHILE LOOP]
declare v_sal number := 6000;begin while (v_sal < 8000) loop v_sal := v_sal + 1; dbms_output.put_line(v_sal); end loop;...
分类:数据库   时间:2015-06-29 23:52:00    阅读次数:184
Oracle PLSQL Demo - 07.LOOP循环,以EXIT WHEN退出[EXIT in LOOP]
declare v_sal number := 6000;begin loop v_sal := v_sal + 1; dbms_output.put_line(v_sal); exit when v_sal = 8000; ...
分类:数据库   时间:2015-06-29 23:51:49    阅读次数:301
Oracle PLSQL Demo - 04.数字FOR LOOP循环[NUMBERABLE (FOR) LOOP]
declare v_display varchar2(10);begin for i in 1 .. 100 loop for j in reverse 1 .. 10 loop dbms_output.put_line(i || ' - ' ...
分类:数据库   时间:2015-06-29 23:50:02    阅读次数:181
Oracle PLSQL Demo - 10.For Loop遍历游标[FOR LOOP CURSOR]
declare cursor cur_emp is select t.* from scott.emp t;begin for r_emp in cur_emp loop dbms_output.put_line(r_emp.empno ...
分类:数据库   时间:2015-06-29 23:48:20    阅读次数:179
Oracle PLSQL Demo - 02.SELECT INTO单行赋值[SELECT INTO variables]
declare v_sal number;begin select t.sal into v_sal from scott.emp t where rownum <= 1; dbms_output.put_line(v_sal);end;
分类:数据库   时间:2015-06-29 23:48:05    阅读次数:239
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