Delphi TmysqlQuery

[question]

how can i convert dateformate from 05.09.2013 to 2013.09.05 17:00:00 using following query

Code:

query1.parambyname('newdate') := newdate //here is the  05.09.2013 17:00:00

but i want

Code:

query1.parambyname('newdate') := newdate /this formate i want 2013.09.05 17:00:00

[DeddyH]

What type is newdate of?

[question]

sorry, i forgot to mention it is DateTime formate

Code:

query1.parambyname('newdate').AsDateTime := newdate /this formate i want 2013.09.05 17:00:00

[mkinzler]

A Windows/Delphi DateTime isn't formated ( it's a Double!). The machnism behind the Komponents should convert the Value into the coresponding fomat. ( Unfortunately mysql unlike other dbms stores string values in the format YYYY-MM-DD HH:MM:SS instead of the use of an independant format).

But as written before, your problem seems be different of this!

[question]

hi, finally i have found the problem, i DB there is one field as a Blob filed, i have read it as a string
forexample: 'lateId' is Blob field

Code:

Query1.ParamByName('lateID').(what to write here) := Query2.FieldByName('lateID').As(?)

[mkinzler]

Something like this

Delphi-Quellcode:

ms: TMemoryStream;
...

try
  ms := TMemoryStream.Create;
  (Query2.FieldByName('lateID') as TBlobField).SaveToStream( ms);
  (Query1.ParamByName('lateID') as TBlobField).LoadFromStream( ms);  
finally
  ms.Free;
end;

[question]

can i also do the following

Code:

QueryA.ParamByName('lateId').AsString := QueryB.FieldByName('lateID').AsString
//Actually i need to do the work with fieldbyname and parambyname
how to that for blobfield with parambyname and fieldbyname

[DeddyH]

As far as can I see Markus uses both FieldByName and ParamByName.

[question]

Hi,
i have still this problem concerning Blob field, i have treid many ways, actually before (when the SQL manager 2010 installed in German language) i have worked with blob field and it was working fine and then i have reinstalled SQL Manager 2010 in English language after that it blob data types are not working, do you think -it can be becaause of the language of SQL Manager?

[question]

Hi,

Code:

//here 'name' is string field and i can write in the following way
 QueryA.ParamByName('Name').AsString :=  QueryB.FieldByName('Name').AsString;

is it also possible to do the same for blob field similar to string/integer field?

Code:

//here NewID is Blob field
QueryA.ParamByName('NewID ').??? :=QueryB.FieldByName('NewID').???; //here how to define the datatype for Blob , i have tried with As TblobField but it does not work

need your suggestion