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Delete all records using Query

Posted on 2002-03-31
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Last Modified: 2011-09-20
i have my database name DataEntries.DB
with fields 1:KeyCode (Autoincremental)
            2:BatchNo (STring)
            3:Descripton

My question is how can i delete all records
having a BatchNo = '044' using the Tquery component?

here is some example of my code, it returns
"invalid token"

Procedure DeleteAll(thetablename:twwtable;thedatasource:Twwdatasource;fieldname,deletestring:string);
begin

fmastermodule.query1.Active:=false;

fmastermodule.query1.SQL.Text:= 'delete '+thetablename.TableName+' where '+fieldname+' = '''+deletestring+'''';

fmastermodule.query1.ExecSQL;


**Can anybody give me some GOOD CODE for this?
0
Comment
Question by:girlswants_me
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6 Comments
 

Author Comment

by:girlswants_me
ID: 6909632
HELP ME PLEASE
0
 
LVL 6

Expert Comment

by:kotan
ID: 6909646
The delete syntax should be

delete from ...
0
 
LVL 6

Accepted Solution

by:
DrDelphi earned 50 total points
ID: 6909650
seems to me that your SQL statement is missing the word "from"..

Example:

var table:string;
begin
  table:='Clients';
Query1.Sql.add('delete  from '+Table+' where  LAST_Name= ''Jones''');
  Query1.execsql;
end;





Good luck!!
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Author Comment

by:girlswants_me
ID: 6909707
Thank you so much
0
 
LVL 6

Expert Comment

by:kotan
ID: 6909717
Did you see my comment? I gave the answer first.
0
 
LVL 6

Expert Comment

by:DrDelphi
ID: 6910296
Kotan,
  I cannot tell you how many times I have had the same thing happen to me. I'll reply only to have someone else collect the points. In my defense however, I have to say that girlswants_me's question DID specifiy that he/she was looking for a code example, which I supplied and you didn't. Granted, I understood what you meant, but strictly speaking it did not answer the question posed.


Good luck!!
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