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Paradox DDL

Posted on 2002-07-10
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Last Modified: 2012-06-27
hello

Is there a way to receive from Paradox Sql - DDL -
i.e : the create query - to create table.

thank u
Asi
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Question by:asi
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8 Comments
 
LVL 3

Expert Comment

by:marcoszorrilla
ID: 7144162
Read this information from Paradox.

CREATE TABLE is supported with the following limitations:

Column definitions based on domains are not supported.
     Constraints are limited to PRIMARY KEY for Paradox tables. Constraints are unsupported in dBASE tables.

For example, the following statement creates a Paradox table with a PRIMARY KEY constraint on the LAST_NAME and FIRST_NAME columns:

CREATE TABLE "employee.db"
     (
     LAST_NAME CHAR(20),
     FIRST_NAME CHAR(15),
     SALARY NUMERIC(10,2),
     DEPT_NO SMALLINT,
     PRIMARY KEY(LAST_NAME, FIRST_NAME)
     )

The same statement for a dBASE table should omit the PRIMARY KEY definition:

CREATE TABLE "employee.dbf"
     (
     LAST_NAME CHAR(20),
     FIRST_NAME CHAR(15),
     SALARY NUMERIC(10,2),
     DEPT_NO SMALLINT
     )

Creating Paradox and dBASE tables

You create a Paradox or dBASE table using Local SQL by specifying the file extension when naming the table:

".DB" for Paradox tables
     ".DBF" for dBASE tables

If you omit the file extension for a local table name, the table created is the table type specified in the Default Driver setting in the System page of the BDE Configuration Utility.



Best Regards.
Marcos.
0
 

Author Comment

by:asi
ID: 7144234
perhaps my question was not clear.
My purpose is to receive from existing paradox table the CREATE TABLE statment , this way i can more easily copy the table structure of paradox to other database
0
 
LVL 3

Expert Comment

by:marcoszorrilla
ID: 7144481
With code yes, but DDL I'm not sure.

procedure TForm1.Button1Click(Sender: TObject);
var
 Table2  : TTable;
begin
 Table1.FieldDefs.Update;
 Table1.IndexDefs.Update;
 Table2 := TTable.Create(nil);
 Table2.DatabaseName := Table1.DatabaseName;
 Table2.TableName := 'NewTable';
 Table2.TableType := Table1.TableType;
 Table2.FieldDefs.Assign(Table1.FieldDefs);
 Table2.IndexDefs.Assign(Table1.IndexDefs);
 Table2.CreateTable ;
end;

Best Regards.
Marcos.

0
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Author Comment

by:asi
ID: 7145297
We try to convert paradox to oracle.
This way lead to many errors like fields does not exsist etc....

thank u
Asi
0
 
LVL 8

Expert Comment

by:TOndrej
ID: 7146971
You could try Datapump that comes with Delphi...
0
 
LVL 27

Expert Comment

by:kretzschmar
ID: 7179544
or tbatchmove . . .
0
 

Author Comment

by:asi
ID: 7179564
tbatchmove . . is not very clear , is there any exmaple how to use it ?
0
 
LVL 8

Accepted Solution

by:
TOndrej earned 100 total points
ID: 7179567
yes, see Help\Examples\BatchMv and BatchMv2 subdirectories
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