WHERE 子句中具有多个条件的 SQL 语句的语法

Question

我在下面的 SQL 字符串上遇到运行时间 3075 问题。有没有可能我漏了括号？

    sql_get = 
"SELECT [tblCompetency02].[HighLevelObjective], 
[tblCompetency04].[Self], 
[tblCompetency04].[SelfSpecialLanguage], 
[tblCompetency04].[SelfChecklist], 
[tblCompetency04].[Team], 
[tblCompetency04].[TeamSpecialLanguage], 
[tblCompetency04].[TeamChecklist],
 [tblCompetency04].[Organisation],
 [tblCompetency04].[OrganisationSpecialLanguage], 
[tblCompetency04].[OrganisationChecklist],
 [tblCompetency02].[Competency] 
FROM [tblCompetency04] 
INNER JOIN [tblCompetency02] 
ON [tblCompetency04].[HighLevelObjective] = [tblCompetency02].[ID] 
WHERE [tblcompetency04].[self]<>"" or [tblcompetency04].[team]<>"" or [tblcompetency04].[organisation]<>"""
        Form_frmStaticDataSkills02.Form.RecordSource = sql_get

Answer 1

检查您的代码创建的语句的 WHERE 子句。

这是一个即时 window 会话：

sql_get = "WHERE [tblcompetency04].[self]<>"" or [tblcompetency04].[team]<>"" or [tblcompetency04].[organisation]<>"""
Debug.Print sql_get
WHERE [tblcompetency04].[self]<>" or [tblcompetency04].[team]<>" or [tblcompetency04].[organisation]<>"

请注意，在每种情况下只有一个双引号字符：<>"

如果你想在字符串中有双引号，用两个得到一个...

sql_get = "WHERE [tblcompetency04].[self]<>"""" or [tblcompetency04].[team]<>"""" or [tblcompetency04].[organisation]<>"""""
Debug.Print sql_get
WHERE [tblcompetency04].[self]<>"" or [tblcompetency04].[team]<>"" or [tblcompetency04].[organisation]<>""

但我认为在字符串中使用单引号更容易混淆，也更不容易出错 ...

sql_get = "WHERE [tblcompetency04].[self]<>'' or [tblcompetency04].[team]<>'' or [tblcompetency04].[organisation]<>''"
Debug.Print sql_get
WHERE [tblcompetency04].[self]<>'' or [tblcompetency04].[team]<>'' or [tblcompetency04].[organisation]<>''

WHERE 子句中具有多个条件的 SQL 语句的语法

Syntax on SQL statement with multiple conditions in WHERE clause

sql

ms-access

vba

ms-access-2010