储蓄过程变量问题
create procedure test( in tbl varchar(32),out cnt int(11) )
begin
/*
这里怎么写执行类似
select count(*) into cnt from {$tbl};
的语句
*/
end
参考:
create procedure countNum
(
in tbName varchar(100),
out allPages int
)
begin
set @sqlStr = CONCAT( ‘select count(*) into @allPages from ‘,tbName);
prepare sqlstmt from @sqlStr;
execute sqlstmt;
set allPages = @allPages;
deallocate prepare sqlstmt;
end;
http://blog.chinaunix.net/u/29134/showart_255219.html
