MySql通用分頁存儲過程

MySql通用分頁存儲過程

1MySql通用分頁存儲過程
 2
 3過程參數
 4p_cloumns varchar(500),p_tables varchar(100),p_where varchar(4000),p_order varchar(100),p_pageindex int,p_pagesize int,out p_recordcount int,out p_pagecount int
 5
 6$$:begin
 7 declare v_sqlcounts varchar(4000);
 8 declare v_sqlselect varchar(4000);
 9 #拼接查詢總記錄的SQL語句
10 set v_sqlcounts = concat('select count(*) into @recordcount from ',p_tables,p_where);
11 #select v_sqlcounts;leave $$;
12 set @sqlcounts = v_sqlcounts;
13 prepare stmt from @sqlcounts;
14 execute stmt;
15 deallocate prepare stmt;
16 #獲取動態SQL語句返回值
17 set p_recordcount = @recordcount;
18 #根據總記錄跳數計算出總頁數
19 set p_pagecount = ceiling((p_recordcount+0.0)/p_pagesize);
20 if p_pageindex <1 then
21 set p_pageindex = 1;
22 elseif p_pageindex > p_pagecount and p_pagecount <> 0 then
23 set p_pageindex = p_pagecount;
24 end if;
25 #拼接分頁查詢記錄的動態SQL語句
26 set v_sqlselect = concat('select ',p_cloumns,' from ',p_tables,p_where,if(p_order is not null,p_order,''),' limit ',(p_pageindex-1)*p_pagesize,' , ',p_pagesize);27 #select v_sqlselect;leave $$;28 set @sqlselect = v_sqlselect;29 prepare stmtselect from @sqlselect;30 execute stmtselect;31 deallocate prepare stmtselect;32end $$