Oracle 存储过程 删除表记录时删除不存在的记录也是显示删除成功 create or replace procedure delDept(p_deptno in dept.deptno%type) is begin delete from dept where deptno=p_deptno; dbms_output.put_line('部门删除成功...'); exception when others then dbms_output.put_line('部门删除失败...'); en
sql%rowcount用于记录修改的条数,就如你在sqlplus下执行delete from之后提示已删除xx行一样,这个参数必须要在一个修改语句和commit之间放置,否则你就得不到正确的修改行数. 例如: declare n number; begin insert into test_a select level lv from dual connect by level<500; n:=sql%rowcount; commit; dbms_output.put_line(n); end
sql server中,返回影响行数是:If @@RowCount<1 Oracle中,返回影响行数是:If sql%rowcount<1 例: sqlserver: create procedure Proc_test , )='', AS BEGIN Update T_Mt Set Stat=@Stat,OStat=@Stat,RptTime=Getdate() Where MsgId=@MsgId --没有更新成功就插入到t_Statbuf insert into t_statbuf(M
oracle中.返回影响行数是:If sql%rowcount 举例: update ut_calenderStatus t set t.calenderstatus=pi_flg, t.m=pi_M, t.n=pi_N, t.prolong=pi_prolong where t.fundcode=pi_fundcode; if sql%rowcount=0 then insert into ut_calenderStatus values (pi_fundcode,pi_flg,pi_M,pi
@@Rowcount主要是返回上次sql语句所影响的数据行数 SELECT * FROM dbo.Region AS R SELECT @@rowcount SELECT @@rowcount --我们可以使用@@rowcount来作递归或循环 begin select * from Region where id=@n end
本人认为很实用的几条语句 1)select ... from ...into... 2)insert into ...select ... 3)select ...from ...left join ...on ... 4)case...when...then ...else ... end Java代码 select * from directory_type where (case when create_date is null then sysdate else create_dat
get diagnostics cnt := row_count; 现在有两个表tab1和tab2,两个表的格式相同,tab1中有1000条数据,tab2中0条数据 创建测试功能函数 create or replace function test_fun() return integer as $body$ declare rowcnt integer; begin insert into tab2 select * from tab1; get diagnostics rowcnt := ro
select 一.课上练习代码 1 查询所有学生信息 select * from tb_student; select * from tb_teacher; 2 查询所有课程名称及学分(投影和别名) select couname, coucredit from tb_course; select couname as 课程名称, coucredit 学分 from tb_course; select stuname 姓名, case stusex when 1 then '男' else '女'
