Miscellaneous Database Tips

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Revision as of 01:14, 21 July 2007


dbf import tip

The table structure of the dbf file for all the fields containing leading apostrophes say they are characters. This can easily seen if you import the DBF file and look at the first row. All columns have a header defining it. C is for characters (text), N would be numeric.

So Calc imports the values correctly as Characters. As the number format for the default template is set to numeric, a apostrophe is placed in front of the value to make it a text.

To change such text values to real numeric values, you have two choices.

1.) Change the field setting in the DBF from C to N and re-import the file or 2.) use the Search and replace functionality. Open the search and replace dialog and enter '.*' (without the quotes) into the search field. Type '&' (also without quotes) into the replace field. Now press on the More Button and tag the option Regular expression. Click on replace all and all the apostrophes should be gone.

MS Access-related tips

Well, a lack of drivers will definitely cause files to not be openable. Anything that requires the MS ODBC bridges won't work for sure, including Access files.

An ODBC driver that works with MS Access on a Mac is the Actual ODBC driver. It is a commercial one, but it works. The MySQL Migration Toolkit for the Mac can be found in the MySQL GUI Tools Bundle and can be used to move data from an MS Access database to a MySQL one (which NeoOffice will happily deal with). Other options are discussed on the Trinity forum.

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