更新时间:2023-12-01 13:15:46
您的 gid
成为一部分SQL语句的名称(因此错误: Unknown column gid
)。
您需要使用Delphi gid
变量来构造SQL语句(就像您使用 sdescription
和 ldescription
一样):
Your gid
becomes a part of the SQL statement (hence the Error: Unknown column gid
).
You need to use the Delphi gid
variable to construct the SQL statement (just like you did with sdescription
and ldescription
):
sSql := 'INSERT INTO emp(usergroup_id, label, description) VALUES (' + InttoStr(gid) + ', ''' + sdescription + ''',''' + ldescription + ''' )';
如果您会使用 Parameters 不会有这样凌乱的查询/代码(也可能受到SQL注入等)。例如:
If You would have used Parameters you wouldn't have such a messy query/code (which is also subject to SQL injection, etc..) e.g.:
qry := TSQLQuery.Create(nil); // or what ever TQuery component you use in your framework
try
qry.SQLConnection := SQLConnection1;
qry.SQL.Text := 'INSERT INTO emp(usergroup_id, label, description) VALUES (:usergroup_id, :label, :description)';
qry.Params.ParamByName('usergroup_id').Value := gid;
qry.Params.ParamByName('label').Value := sdescription;
qry.Params.ParamByName('description').Value := ldescription;
qry.ExecSQL;
finally
qry.Free;
end;