petereilering
asked on
SQL question
I want to do the following:
var list:string;
begin
list:='("word1","word2"')'
query1.close;
query1.sql.clear;
query1.sql.add('select * from table1 where attribute IN list');
So the the In statement must use word1 en word2 to run the query.But the words are in the string variable.
Can somebody help me?
var list:string;
begin
list:='("word1","word2"')'
query1.close;
query1.sql.clear;
query1.sql.add('select * from table1 where attribute IN list');
So the the In statement must use word1 en word2 to run the query.But the words are in the string variable.
Can somebody help me?
ASKER
I am using Delphi 2.0 and I have tried parambyname
ASKER CERTIFIED SOLUTION
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Hi peterreilering,
SELECT *
FROM CLIENTS C
WHERE (C.ACCT_FirstName IN ('word1','word2'))
Does this work?
SELECT *
FROM CLIENTS C
WHERE (C.ACCT_FirstName IN ('word1','word2'))
Does this work?
BTW, that is NOT a parametrized query... so the "feel free to ask more" :)
Hi all,
Julio are you sure your code works? If so, I've learned something more today....
Otherwise we've to create the string ourselfs :
var SQLString :String;
begin
SQLString := 'where attribute IN ('
SQLString := SQLString + ''''+ 'Word1'+ '''';
SQLString := SQLString + ''''+ 'Word2'+ '''';
end;
Offcourse last would be better in a loop .....
for i := 0 to list.Count-1 do begin
SQLString := SQLString + ''''+ List.Strings[i]+ '''';
end;
Don't forget to close it : SQLString := SQLString + ')';
And then :
query1.close;
query1.sql.clear;
query1.sql.add('Select *');
query1.sql('from table1');
query1.sql.add(SQLString);
Regards, ZiF.
Julio are you sure your code works? If so, I've learned something more today....
Otherwise we've to create the string ourselfs :
var SQLString :String;
begin
SQLString := 'where attribute IN ('
SQLString := SQLString + ''''+ 'Word1'+ '''';
SQLString := SQLString + ''''+ 'Word2'+ '''';
end;
Offcourse last would be better in a loop .....
for i := 0 to list.Count-1 do begin
SQLString := SQLString + ''''+ List.Strings[i]+ '''';
end;
Don't forget to close it : SQLString := SQLString + ')';
And then :
query1.close;
query1.sql.clear;
query1.sql.add('Select *');
query1.sql('from table1');
query1.sql.add(SQLString);
Regards, ZiF.
Ok, this is a working method too, but if julio's code works, that one is better offcourse! :
var LISTATTRIBUTES : TStringList;
i : integer;
SQLSTRING : String;
begin
LISTATTRIBUTES := TStringList.Create;
with LISTATTRIBUTES do begin
Clear;
Add('Word1');
Add('Word2');
end;
SQLString := '';
SQLString := 'Where ATTRIBUTES IN (';
for i:= 0 to LISTATTRIBUTES.COUNT-1 do begin
SQLString := SQLString + '''' + LISTATTRIBUTES.Strings[i]+
end;
SQLString[Length(SQLString
query1.sql.clear;
query1.sql.add('Select *');
query1.sql('from table1');
query1.sql.add(SQLString);
LISTATTRIBUTES.Free;
end;
Regards, ZiF.
var LISTATTRIBUTES : TStringList;
i : integer;
SQLSTRING : String;
begin
LISTATTRIBUTES := TStringList.Create;
with LISTATTRIBUTES do begin
Clear;
Add('Word1');
Add('Word2');
end;
SQLString := '';
SQLString := 'Where ATTRIBUTES IN (';
for i:= 0 to LISTATTRIBUTES.COUNT-1 do begin
SQLString := SQLString + '''' + LISTATTRIBUTES.Strings[i]+
end;
SQLString[Length(SQLString
query1.sql.clear;
query1.sql.add('Select *');
query1.sql('from table1');
query1.sql.add(SQLString);
LISTATTRIBUTES.Free;
end;
Regards, ZiF.
Why shouldn't that work? I mean, Add() takes a String parameter, doesn't it?!
BTW, Zif, i wander if 'peter' is actually looking for something like your method - which is surely more general than mine - rather than a parametrized query...
BTW, Zif, i wander if 'peter' is actually looking for something like your method - which is surely more general than mine - rather than a parametrized query...
Hi Julio, correct Add() takes a string, but I thought that he didn't meant list with just a string... I mean 500 points?.... I thought he meant with list a TStringList or something likt that... Regards, ZiF.
Right; indeed, IMO, this 500 points are just too much.
But where's petereilering? It seems to be his turn.
But where's petereilering? It seems to be his turn.
ASKER
Julio excelent answer it works
ASKER