Choose your database:
AnySQL
MySQL
MS SQL Server
PostgreSQL
SQLite
Firebird
Oracle
SQL Anywhere
DB2
MaxDB

Subscribe to our news:
Partners
Testimonials
Samuel Poole: "I recently downloaded and ordered MySQL Data Wizard, and I thought I would drop you a note to let you know that it is the software I needed . Well done, keep up the good work, and please accept my very best regards. Please feel free to use the contents of this e-mail along with my name, as an endorsement of your excellent product".
Frank Thomas: "The import function from Excel is brilliant! I was able to port a database from a foreign source into Excel and then import it directly into MySQL with your program".

More

Add your opinion

Data Wizard for MySQL online help

Prev Return to chapter overview Next

Adding objects to export data from

To specify source database objects you want to export data from, click the Add... button and pick the objects in the Select objects dialog. To choose several objects at a time, select them using Ctrl and Shift keys, then click Mark selected.

 

 

To use a custom SQL query as a data source, use the Create query button and enter the query name and a SELECT statement. It is also possible to load a query from an .sql file.

 

Rules for creating queries used by Data Export

All queries must satisfy the simple requirement: the following query must be correct.

 

select * from

(

  QUERY_TEXT_YOU_ENTERED

) an_alias

 

This happens because the software uses similar queries for internal needs. In case such SQL expression is not valid, the wizard marks the query as invalid and displays its name in red.

 

To meet this requirement, make sure that all the columns in the result dataset have unique aliases. For example, the following query works fine itself, but returns a dataset with two columns named id:

 

SELECT 

         table1.*, 

         table2.* 

FROM table1, table2 

WHERE table1.id = table2.id;

 

This is the reason the wizard marks this query as invalid. To solve the problem, provide these columns with unique aliases:

 

SELECT 

         table1.id as table1_id, 

         table2.id as table2_id

FROM table1, table2 

WHERE table1.id = table2.id;



Prev Return to chapter overview Next