Unknown Sql Exception（Number = 102，Message ='，'附近的错误语法。）

Question

我在'，'附近收到此语法错误，

我已经尝试过一些解决方案，因为此论坛之前已经有人问过这个问题，但无济于事。

string sqlSelect = "SELECT"
+ " 'RI' AS DocType, DebtorCode, DocNo, DocDate, [Description]"
+ ",SalesAgent, LocalNetTotal AS LocalAmount,"
+ "(Outstanding * CurrencyRate) AS LocalBalance"
+ " FROM ARINVOICE"
+ " WHERE Cancelled = 'F'"
+ " UNION"
+ " SELECT 'RD' AS DocType, DebtorCode, DocNo, DocDate, [Description]"
+ ",SalesAgent, LocalNetTotal AS LocalAmount"
+ ",Outstanding AS LocalBalance"
+ " FROM ARDN"
+ " WHERE Cancelled = 'F'"
+ " UNION"
+ " SELECT 'RC' AS DocType, DebtorCode, DocNo, DocDate, [Description]"
+ ",'' AS SalesAgent, LocalNetTotal AS LocalAmount"
+ ",(NetTotal - KnockOffAmt + RefundAmt) * CurrencyRate AS LocalBalance"
+ " FROM ARCN"
+ " WHERE Cancelled = 'F'"
+ " UNION"
+ " SELECT 'RP' AS 'DocType', 'DebtorCode', 'DocNo', 'DocDate', 
[Description]"
+ ",'' AS SalesAgent, LocalPaymentAmt AS LocalAmount"
+ ",LocalUnappliedAmount AS LocalBalance"
+ " FROM ARPAYMENT"
+ " WHERE Cancelled = 'F'";

他们的查询有什么问题吗？因为我已经检查了2天，没有发现任何错误，这不是我所知道的。希望任何人都可以提供帮助。

Answer 1

您是否尝试取消对DocType的引用？

string sqlSelect = "SELECT"
+ " 'RI' AS DocType, DebtorCode, DocNo, DocDate, [Description]"
+ ",SalesAgent, LocalNetTotal AS LocalAmount,"
+ "(Outstanding * CurrencyRate) AS LocalBalance"
+ " FROM ARINVOICE"
+ " WHERE Cancelled = 'F'"
+ " UNION"
+ " SELECT 'RD' AS DocType, DebtorCode, DocNo, DocDate, [Description]"
+ ",SalesAgent, LocalNetTotal AS LocalAmount"
+ ",Outstanding AS LocalBalance"
+ " FROM ARDN"
+ " WHERE Cancelled = 'F'"
+ " UNION"
+ " SELECT 'RC' AS DocType, DebtorCode, DocNo, DocDate, [Description]"
+ ",'' AS SalesAgent, LocalNetTotal AS LocalAmount"
+ ",(NetTotal - KnockOffAmt + RefundAmt) * CurrencyRate AS LocalBalance"
+ " FROM ARCN"
+ " WHERE Cancelled = 'F'"
+ " UNION"
+ " SELECT 'RP' AS DocType, 'DebtorCode', 'DocNo', 'DocDate', 
[Description]"
+ ",'' AS SalesAgent, LocalPaymentAmt AS LocalAmount"
+ ",LocalUnappliedAmount AS LocalBalance"
+ " FROM ARPAYMENT"
+ " WHERE Cancelled = 'F'";