Re: Single quotes in IB7 field values

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#445

From: Wayne Niddery (TeamB)
Date: Tue, 18 Mar 2008 14:04

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"Brian" <AAA@AAA.AA> wrote in message 
news:MPG.22498b10b5e30cfa989680@newsgroups.borland.com...
> My OCCUPANT_NAME field in my OCCUPANTS table contains some values
> with single quotes like Fred's Market for instance.
> Are there any escape characters I can use in My SQL strings?
> My front end application is Access2007 and I am using the DataDirect
> ODBC driver.
> Earlier versions of IB used to accept double quotes around a fields
> value.


If you are formatting SQL directly instead of using parameters then you must 
double up single quotes, e.g:

  s := 'where name = ''Fred''s Market''';

Delphi also has a QuotedStr function that makes this easier, e.g. if a user 
enters Fred's Market in an edit control:

    s := 'where name = ' + QuotedStr(Edit1.Text);

However, the best way to avoid these issues is to use parameterized queries. 
Assign the SQL to the dataset as:

  MyDataset.SQL.Text := 'select * from table where name = :name';

Then assign the parameter(s):

  MyDataset.ParamByName('name') := Edit1.Text;


-- 
Wayne Niddery - TeamB (www.teamb.com)
Winwright, Inc. (www.winwright.ca)

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Subject: Re: Single quotes in IB7 field values
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