数据库：常见错误及解决

数据库常用查询语句报错及解决方案，根据自己经验总结下：

 

语句：select * from FF_GW_CUST_RC where CST_NM like '%杜芳%' and and CREADIT_AMT='12000';

报错：18:05:27  [SELECT - 0 row(s), 0.000 secs]  [Error Code: 942, SQL State: 42000]  ORA-00942: 表或视图不存在

解决：表不存在，修改表的名字

 

语句：select * from FF_GW_CUST_RC where CT_NO='00156712020042664271';

报错：16:44:17  [SELECT - 0 row(s), 0.000 secs]  [Error Code: 904, SQL State: 42000]  ORA-00904: "CT_NO": 标识符无效

解决：发现数据库中列名CT_NO不存在，CT_ID存在，因此修改语句中的列名

 

语句：select distinct BS_NO from FF_GW_REQUEST where BS_NO between '1100931' and 1100939'

select distinct BS_NO from FF_GW_REQUEST where BS_NO='1234'

报错：09:50:12  [SELECT - 0 row(s), 0.000 secs]  [Error Code: 933, SQL State: 42000]  ORA-00933: SQL 命令未正确结束

解决：第一条语句前面增加 /*

          或者仅选中第二句执行

 

语句：select distinct BS_NO from FF_GW_REQUEST where BS_NO between '1100931' and 1100939'

报错：09:51:58  [SELECT - 0 row(s), 0.000 secs]  [Error Code: 1756, SQL State: 42000]  ORA-01756: 引号内的字符串没有正确结束

解决：'1100939'增加左边的引号

 

语句：select * from FF_GW_REQUEST where BS_NO

报错：09:54:01  [SELECT - 0 row(s), 0.000 secs]  [Error Code: 920, SQL State: 42000]  ORA-00920: 无效的关系运算符

解决：BS_NO赋值

 

语句：select * from FF_GW_REQUEST where

报错：09:54:44  [SELECT - 0 row(s), 0.000 secs]  [Error Code: 936, SQL State: 42000]  ORA-00936: 缺失表达式

解决：where后 +任意条件

 

语句：# select * from FF_GW_CUST_RC where CT_NO='00156712020042664271';

报错：09:59:31  [# - 0 row(s), 0.000 secs]  [Error Code: 911, SQL State: 22019]  ORA-00911: 无效字符

解决：/* select * from FF_GW_CUST_RC where CT_NO='00156712020042664271';

 

语句：select * from FF_REQUEST where CR_DATE between ’2019-03-20’   and  ’2019-03-21’

报错：16:43:58  [SELECT - 0 row(s), 0.000 secs]  [Error Code: 1843, SQL State: 22008]  ORA-01843: 无效的月份

解决：select * from FF_REQUEST where to_char(CR_DATE,YYYY-MM-DD) =’2019-03-20’

select * from FF_REQUEST where to_char(CR_DATE,YYYY-MM-DD) between ’2019-03-20’ and ‘2019-03-24’

 

语句：select * from FF_REQUEST where CR_DATE between ’2019-03-20’  YYYY-MM-DD and  ’2019-03-21’ YYYY-MM-DD

报错：00905：缺失关键字

解决：select * from FF_REQUEST where to_char(CR_DATE,YYYY-MM-DD) =’2019-03-20’

 

语句：select * from FF_REQUEST order by CR_DATE desc where to_char(CR_DATE,YYYY-MM-DD) =’2019-03-20’

报错：00933：SQL命令未正确结束

原因：order排序应该放在条件的后面，正确的用法是：select 列名 from 表名 where 条件 order by 列名 desc

解决：select * from FF_REQUEST where to_char(CR_DATE,YYYY-MM-DD) =’2019-03-20’ order by CR_DATE desc