如何解决ORA 00936缺少表达式错误? [英] How to resolve ORA 00936 Missing Expression Error?

问题描述

Select /*+USE_HASH( a b ) */ to_char(date, 'MM/DD/YYYY HH24:MI:SS') as LABEL,
ltrim(rtrim(substr(oled, 9, 16))) as VALUE,
from rrfh a, rrf b,
where ltrim(rtrim(substr(oled, 1, 9))) = 'stata kish' 
and a.xyz = b.xyz 

上述查询的"from"(第三行)部分给了我ORA-00936 Missing EXPRESSION error.请帮助我

The "from " (3rd line) part of the above query is giving me ORA-00936 Missing EXPRESSION error. Please Help me

注意 :: rrfh表中没有数据.

NOTE :: rrfh table contains no data.

推荐答案

删除逗号?

select /*+USE_HASH( a b ) */ to_char(date, 'MM/DD/YYYY HH24:MI:SS') as LABEL,
ltrim(rtrim(substr(oled, 9, 16))) as VALUE
from rrfh a, rrf b
where ltrim(rtrim(substr(oled, 1, 9))) = 'stata kish' 
and a.xyz = b.xyz

看看 FROM

从多个表中进行选择您可以在 通过列出表并在每个表之间加逗号来表示FROM子句 名称

SELECTING from multiple tables You can include multiple tables in the FROM clause by listing the tables with a comma in between each table name

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