coldfusion - 查询变量范围的查询

Question

使用查询查询时是否可以限定变量范围？这有效

return queryExecute("
        SELECT Title, Slug, Menu, MenuOrder
        FROM qryResult
        WHERE Menu = 'Y'
        ORDER BY MenuOrder
        ",
        [],
        {dbtype = "query"}
        );

这不起作用。它抛出一个错误

return queryExecute("
        SELECT Title, Slug, Menu, MenuOrder
        FROM local.qryResult
        WHERE Menu = 'Y'
        ORDER BY MenuOrder
        ",
        [],
        {dbtype = "query"}
        );

Message
Query Of Queries syntax error.
Encountered "local. StackTrace java.sql.SQLException:
Query Of Queries syntax error.
Encountered "local. at coldfusion.sql.imq.jdbcStatement.parseSQL(jdbcStatement.java:590) at coldfusion.sql.imq.jdbcStatement.fetchResult(jdbcStatement.java:547) at ORDER BY MenuOrder ", [], {dbtype = "query"} );

Answer 1

LOCAL是 ColdFusion Query of Query 中的保留字和 SQL .

所以，包装 LOCAL与 square brackets[]像这样:

return queryExecute("
        SELECT Title, Slug, Menu, MenuOrder
        FROM [local].qryResult
        WHERE Menu = 'Y'
        ORDER BY MenuOrder
        ",
        [],
        {dbtype = "query"}
        );

或

对函数局部作用域使用其他名称，即

var newLocal = structNew();
newLocal.qryResult = queryNew("");
return queryExecute("
        SELECT Title, Slug, Menu, MenuOrder
        FROM newLocal.qryResult
        WHERE Menu = 'Y'
        ORDER BY MenuOrder
        ",
        [],
        {dbtype = "query"}
        );