[英]How to fetch those rows where all values are same in mysql
我有一張桌子:
Unique Value Remarks
URTA-144 ACC
URTA-144 ADD
URTA-144 ADT
URTA-145 ALL
URTA-145 ALL
URTA-145 ALL
我想獲取那些行,其中對於每個不同的Unique Value
我在“ Remarks
具有相同的值。
例如:
Unique Value
URTA-145
嘗試這個:
create table Tbl(UniqueValue char(8), Remarks char(3));
insert into Tbl values
('URTA-144', 'ACC'),
('URTA-144', 'ADD'),
('URTA-144', 'ADT'),
('URTA-145', 'ALL'),
('URTA-145', 'ALL'),
('URTA-145', 'ALL');
select UniqueValue from Tbl
group by UniqueValue
having count(distinct Remarks) = 1;
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