MySql通用分页存储过程

MySql通用分页存储过程

1MySql通用分页存储过程
2
3过程参数
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$$:begin
7    declare v_sqlcounts varchar(4000);
8    declare v_sqlselect varchar(4000);
9    #拼接查询总记录的SQL语句
10    set v_sqlcounts = concat('select count(*) into @recordcount from ',p_tables,p_where);
11    #select v_sqlcounts;leave $$;
12    set @sqlcounts = v_sqlcounts;
13    prepare stmt from @sqlcounts;
14         execute stmt;
15    deallocate prepare stmt;
16    #获取动态SQL语句返回值
17    set p_recordcount = @recordcount;
18    #根据总记录跳数计算出总页数
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    #拼接分页查询记录的动态SQL语句
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 $$;28    set @sqlselect = v_sqlselect;29    prepare stmtselect from @sqlselect;30    execute stmtselect;31    deallocate prepare stmtselect;32end $$