C＃Access數據庫更新語法錯誤

Question

這個查詢有問題嗎？

"UPDATE tb_EmployeeMasterList SET [EmployeeID] = " + txt_EmpId.Text +", [LastName] = '" + txt_LN.Text + "', [FirstName] = '" + txt_FN.Text + "', [MiddleName] = '" + txt_MN.Text + "', [PositionOrSkill] = '" + txt_PorS.Text + "', [BasicSalary] = " + txt_Basic.Text + ", [Allowance] = " + txt_Allow.Text + ", [Total] = " + total + ", [EPAproposedBonus] = " + txt_Bonus.Text + ", [Remarks] = '" + txt_Remarks.Text + "' WHERE ([LastName] = '" + LN + "' AND [FirstName] = '" + FN + "');"

我繼續單獨獲取該查詢的語法錯誤。

Answer 1

似乎缺少一對單引號：

"UPDATE tb_EmployeeMasterList SET [EmployeeID] = " + txt_EmpId.Text +",

應該：

"UPDATE tb_EmployeeMasterList SET [EmployeeID] = '" + txt_EmpId.Text +"', 

Answer 2

嘗試在不帶括號的情況下觸發WHERE語句

"UPDATE tb_EmployeeMasterList SET [EmployeeID] = " + txt_EmpId.Text +", [LastName] = '" + txt_LN.Text + "', [FirstName] = '" + txt_FN.Text + "', [MiddleName] = '" + txt_MN.Text + "', [PositionOrSkill] = '" + txt_PorS.Text + "', [BasicSalary] = " + txt_Basic.Text + ", [Allowance] = " + txt_Allow.Text + ", [Total] = " + total + ", [EPAproposedBonus] = " + txt_Bonus.Text + ", [Remarks] = '" + txt_Remarks.Text + "' WHERE [LastName] = '" + LN + "' AND [FirstName] = '" + FN + "';"

Answer 3

如果為total ，則LN和FN值來自變量而不是文本框，則語法正常，但文本框然后在其后添加.Text，否則會出現語法錯誤。