Question

我正在使用MySQL控制中心来测试一些在我的代码中引发错误的SQL语句。每次我测试它都没有给出错误是什么的错误，错误在哪里。它只是列出了整个声明，并说它在那里的某个地方。这是Borland的声明，它给了我一个错误：

sprintf(sql, "CREATE TABLE %s AS "
               "SELECT "
               " LPAD(V0_X1_A3, 13, ' ') AS V0_X1_A3, "
               " SUM (F5*F6) AS CostExt, "
               " IFNULL(V0_X1_A2, 0.00000) AS V0_X1_A2, "
               " SUM(F6) AS F6 "
               "FROM _TransRecords "
               " LEFT OUTER JOIN _V0_X1 ON V0_X1_PK = V0_X1_FK "
               "WHERE %s "
               " GROUP BY V0_X1_A3 ", TblName, where);

我将语法编辑为：

sprintf(sql, "CREATE TABLE %s AS "
               " SELECT "
               " SUM (F5*F6) AS CostExt, "
               " SUM(F6) AS F6 "
               " FROM _TransRecords "
               " LPAD(V0_X1_A3, 13, ' ') AS V0_X1_A3, "
               " IFNULL(V0_X1_A2, 0.00000) AS V0_X1_A2, "
               " FROM _V0_X1 "
               " LEFT OUTER JOIN _V0_X1 ON V0_X1_PK = V0_X1_FK "
               " WHERE %s "
               " GROUP BY V0_X1_A3 ", TblName, where);

Answer 1

JOIN语法存在问题，因为您未在ON条件中指定表名。我猜测一个解决方案（因为我不知道哪些列属于哪个表）：

           "CREATE TABLE %s AS "
           "SELECT "
           " LPAD(V0_X1_A3, 13, ' ') AS V0_X1_A3, "
           " SUM (F5*F6) AS CostExt, "
           " IFNULL(V0_X1_A2, 0.00000) AS V0_X1_A2, "
           " SUM(F6) AS F6 "
           "FROM _TransRecords "
           " LEFT OUTER JOIN _V0_X1 ON _TransRecords.V0_X1_PK = _V0_X1.V0_X1_FK "
           "WHERE %s "
           " GROUP BY V0_X1_A3 "

Answer 2

我得到了它的工作。这是我的代码。

sprintf(sql, "CREATE TABLE %s AS "
               " SELECT "
               " SUM(F5*F6) AS CostExt, "
               " SUM(F6) AS F6, "
               " LPAD(V0_X1_A3, 13, ' ') AS V0_X1_A3, "
               " IFNULL(V0_X1_A2, 0.00000) AS V0_X1_A2, "
               " SUM(V0_X1_A2*F6) AS RetailExt "
               " FROM _TransRecords "
               " LEFT OUTER JOIN _V0_X1 ON V0_X1_PK = V0_X1_FK "
               " WHERE %s "
               " GROUP BY V0_X1_A3 ", TblName, where);

SQL语法出错，请查看手册

2 个答案: