求助一SQL语句
有10张表
DATA_101_0507,DATA_102_0507.....DATA_110_0507,
从每个表中按一定规则选出数据,然后插入到a表中
如:
insert into a(name,num)
select name,count(*) from DATA_101_0507
group by name
...
insert into a(name,num)
select name,count(*) from DATA_110_0507
group by name
有10张表
DATA_101_0507,DATA_102_0507.....DATA_110_0507,
从每个表中按一定规则选出数据,然后插入到a表中
如:
insert into a(name,num)
select name,count(*) from DATA_101_0507
group by name
...
insert into a(name,num)
select name,count(*) from DATA_110_0507
group by name
insert into a(name,num)
select name,count(*) from DATA_101_0507
group by name
union all
...
insert into a(name,num)
select name,count(*) from DATA_110_0507
group by name