Question

有人可以帮我解决这个问题吗，我运行代码时出现语法错误，我不知道它可能是什么...提前感谢

SqlCommand scGetPostings = new SqlCommand ("SELECT D1.dr,D1.cr,d1.asset_no ,(open_bal+dr-cr) as closing_balance FROM" +
"(SELECT COALESCE(SUM(dr_amount),0) as dr, COALESCE(SUM(cr_amount),0) as cr,invasset.asset_no FROM posting,sysasset,invasset" +
"WHERE posting.asset_no = invasset.asset_no AND posting.asset_no = @AssetNo, AND period >= asset_open_per GROUP BY invasset.asset_no)" +
"as D1,asset", DataAccess.AConnection);

Answer 1

在行的末尾添加一些空格，否则这是连接的结果：

FROM(SELECT
invassetWHERE posting.asset_no

...

更新：实际错误来自WHERE posting.asset_no＆lt; - 此点。因为未解析where子句，并且posting.asset_no需要作为表名

Answer 2

问题在于where子句：

WHERE posting.asset_no = invasset.asset_no AND posting.asset_no = @AssetNo, AND period >= asset_open_per

删除逗号，它应该有效。像这样：

WHERE posting.asset_no = invasset.asset_no AND posting.asset_no = @AssetNo AND period >= asset_open_per

Answer 3

SqlCommand scGetPostings = new SqlCommand ("SELECT D1.dr,D1.cr,d1.asset_no ,(open_bal+dr-cr) as closing_balance FROM " +
"(SELECT COALESCE(SUM(dr_amount),0) as dr, COALESCE(SUM(cr_amount),0) as cr,invasset.asset_no FROM posting,sysasset,invasset" +
" WHERE posting.asset_no = invasset.asset_no AND posting.asset_no = @AssetNo AND period >= asset_open_per GROUP BY invasset.asset_no )" +
"AS D1,asset", DataAccess.AConnection);

Answer 4

在字符串片段的末尾添加空格！

"(SELECT ...,sysasset,invasset " +
"WHERE ... invasset.asset_no)"

而不是

"(SELECT ...,sysasset,invasset" +
"WHERE ... invasset.asset_no)"

Answer 5

摆脱,

之后的AND posting.asset_no = @AssetNo

语法不正确'。 “

5 个答案: