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https://issues.apache.org/jira/browse/OPENJPA-1782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12907095#action_12907095
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Catalina Wei commented on OPENJPA-1782:
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Double quoted string literals are allowed in JPQL.
A double quoted string literal starts with a double quote - " and ends with a
double quote, but it can not contain a double quote.
A lexical error is reported if any double quotes appear within a double quoted
string literal.
For example, the following string literals are valid:
"You're right"
"This is a double quoted string literal"
If you need double quote(s) in a string literal, enclose the string in single
quotes, i.e. use single quoted string literal.
For example, the following single quoted string literal contains a double quote:
'This is a single quoted string literal that contains a double quote - ". '
> Accept double quoted string literal in JPQL
> -------------------------------------------
>
> Key: OPENJPA-1782
> URL: https://issues.apache.org/jira/browse/OPENJPA-1782
> Project: OpenJPA
> Issue Type: Improvement
> Components: query
> Affects Versions: 2.1.0
> Reporter: Catalina Wei
> Assignee: Catalina Wei
>
> A problem was found while using some Glassfish Java EE 6 samples with the
> OpenJPA provider.
> The sample was using double quotes for a literal on the "NOT LIKE" expression
> instead of the required single quotes:
> select count(l) from LogRecord l where l.record NOT LIKE "Canceling timer%"
> We do not allow double quoted literals in JPQL queries. The above JPQL
> resulted an error with text message:
> Lexical error at line 1, column 58. Encountered: "\"" (34), after : ""
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