Question

我想更新DB2 / AS400表中的数据集。

问题是如果我在参数列表中有字符串参数，则命令找不到要更新的行。

例如：如果我仅使用公司编号运行命令，则命令将成功。如果我使用公司编号和设施编号运行命令，则命令失败。

有没有人有任何想法？

IDbConnection cn = Tools.GetCnApp();

try
{
    StringBuilder sql = new StringBuilder(); 

    sql.AppendLine("UPDATE " + Tools.GetSchemeApp() + "/ChangeReasonAssignments");
    sql.AppendLine("  SET Confirmed = @CONF, Confirmed_By = @CONFBY, Confirmed_At = @CONFAT");
    sql.AppendLine("  WHERE Company = @CONO AND Facility = @FACI AND Department = @DEPT");
    sql.AppendLine("  AND Production_Group = @PRGR AND Manufacturing_Order = @ORDR AND Order_Operation = @OPER");
    sql.AppendLine("  AND Confirmed = 0");

    IDbCommand cmd = cn.CreateCommand();

    cmd.SetParameter("@CONO", this.CompanyNumber);
    cmd.SetParameter("@FACI", this.FacilityNumber);
    cmd.SetParameter("@DEPT", this.ProductionGroup.Department.Name);
    cmd.SetParameter("@PRGR", this.ProductionGroup.Name);
    cmd.SetParameter("@ORDR", this.ManufacturingNumber);
    cmd.SetParameter("@OPER", this.OperationNumber);
    cmd.SetParameter("@CONFBY", Base.User);
    cmd.SetParameter("@CONFAT", DateTime.Now.ToString());
    cmd.SetParameter("@CONF", 1);

    cmd.CommandText = sql.ToString();

    if (cmd.ExecuteNonQuery() > 0)
    {
    }

修改

数据库中的数据类型为：

公司：INTEGER
设施：VARCHAR
Dpartment：VARCHAR
Production_Group：VARCHAR
Manufacturing_Order：INTEGER
Order_Operation：INTEGER

.NET 中的数据类型为：

CompanyNumber：int
FacilityNumber：String
部门名称：字符串
ProductionGroup：String
Manufacturingorder：int
OrderOperation：int

sql.ToString（）结果：

UPDATE TSAEDBDEV/ChangeReasonAssignments SET Confirmed = @CONF, Confirmed_By = @CONFBY, Confirmed_At = @CONFAT WHERE Company = @CONO AND Facility = @FACI AND Confirmed = 0

Answer 1

尝试将字符串值设置为“：cmd.SetParameter("@DEPT", "'" + this.ProductionGroup.Department.Name + "'");

SQL：Update不会影响任何行

修改

1 个答案: