PL/SQL编程重点语句输出整理

 create or replace procedure pr_mytest is

 v_test number() :=;
 v_char varchar2():='数据库';
 c_changl constant number(,) :=3.14;
 v_bm t_hq_ryxx.bum%type;
 type ty_ry is record           --复合类型里的记录类型,定义了一种新的记录类型
 (
 v_xingm t_hq_ryxx.xingm%type,
 v_xingb t_hq_ryxx.xingb%type,
 v_gongz number(,)
 );

 v_ry ty_ry;         --声明这种记录类型的变量

 v_ryrow t_hq_ryxx%rowtype;  --表的所有字段

 begin

 v_char :='你好';
 --c_chang1 := 12.45;

 select count() into v_test from t_hq_ryxx;
 dbms_output.put_line(v_char ||',测试存储过程,记录条数='||v_test);

 select bum into v_bm from t_hq_ryxx  where rownum = ;
 dbms_output.put_line(v_char ||',测试存储过程,记录条数='||v_bm);

 select xingm,xingb,gongz into v_ry from t_hq_ryxx  where rownum = ;
 dbms_output.put_line('记录类型=' || v_ry.v_xingm || ' '|| v_ry.v_xingb ||' '||v_ry.v_gongz);

 select * into v_ryrow from t_hq_ryxx  where rownum = ;
 dbms_output.put_line('行记录类型=' || v_ryrow.xingm || ' '|| v_ryrow.xingb ||' '||v_ryrow.gongz|| ' '||v_ryrow.nianl);

 end pr_mytest;