select .. from xxx where xx_no = 20200400001
-
字段类型为:NVARCHAR2
-
查询条件类型为:NUMBER
select .. from xxx where xx_no = 20200400001
select .. from xxx where xx_no = '20200400001'
select .. from xxx where xx_no = 20200400001
字段类型为:NVARCHAR2
查询条件类型为:NUMBER
select .. from xxx where xx_no = 20200400001
select .. from xxx where xx_no = '20200400001'