mORMot Open Source

jonsafi

Member

Registered: 2011-07-26

Posts: 58

Deleting with a dynamic query...

Hello, was trying to delete hundreds of rows from
a table based on a date value. Tried first
retrieving the row matching the date and then
deleting the rows using:

BatchDelete
BatchSend
followed by Commit.
This returned success (200)
but for some reason the rows were not removed.

Anyhow am now trying to use the following simpler way:

Var
sql8:putf8Char;
where_str:AnsiString;

where_str  := 'date(datetaken) > '2010-10-15''';
sql8            := 'DELETE FROM MYTABLE WHERE ' + where_str;
globalClient.EngineExecuteFmt(sql8,[]);

This code will not compile, because of a type error.
Could not find any easy way of converting a string to
putf8Char. Could you please help me out here?

Thanks a lot for any pointers.
Regards,
Sami

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,272

Website

Re: Deleting with a dynamic query...

Did you create a transaction first?