Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

I need to create a function that will drop a field from a table, but I am having problem to create this function due to the kind of the field.

Posted on 2006-11-24
2
Medium Priority
?
152 Views
Last Modified: 2010-04-05
The error is when I try to compare whether the DataType is equal FieldExpected.

Function (Table, Field : String; FieldExpected: TFieldType) : Boolean
Var
  TQ : TADOQuery;
  I  : Integer;
  Drop : Boolean;
Begin
  TQ := TADOQuery.Create(Nil);
  TQ.Connection := Fmenu.ADOConnection1;
  Drop := False;

  Try
    With TQ do
    Begin
      Close;
      Sql.Add('SELECT * FROM ' + Table);
      Open;

      For I := 0 to Pred(TQ.Fields.Count) do
      Begin
        If TQ.Fields.Fields[I].FieldName = FieldThen
           Begin
             If Not TQ.Fields.Fields[I].DataType = FieldExpected Then
                Begin
                  Drop := True;
                End
             Else
                Begin
                  Drop := False;
                End
            Break
           End;
      End;
0
Comment
Question by:hidrau
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 28

Accepted Solution

by:
2266180 earned 2000 total points
ID: 18006728
replace
             If Not TQ.Fields.Fields[I].DataType = FieldExpected Then
with
             If Not (TQ.Fields.Fields[I].DataType = FieldExpected) Then

0
 
LVL 1

Author Comment

by:hidrau
ID: 18006770
Thks

0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The uses clause is one of those things that just tends to grow and grow. Most of the time this is in the main form, as it's from this form that all others are called. If you have a big application (including many forms), the uses clause in the in…
Have you ever had your Delphi form/application just hanging while waiting for data to load? This is the article to read if you want to learn some things about adding threads for data loading in the background. First, I'll setup a general applica…
Have you created a query with information for a calendar? ... and then, abra-cadabra, the calendar is done?! I am going to show you how to make that happen. Visualize your data!  ... really see it To use the code to create a calendar from a q…
In this video, Percona Solutions Engineer Barrett Chambers discusses some of the basic syntax differences between MySQL and MongoDB. To learn more check out our webinar on MongoDB administration for MySQL DBA: https://www.percona.com/resources/we…
Suggested Courses

609 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question