Re: [SQL] Best way to simulate Booleans

2009-07-07 Thread Scott Marlowe
On Mon, Jul 6, 2009 at 7:22 PM, Peter Headlandpheadl...@actuate.com wrote: I know, I know, PostgreSQL has Booleans that work very nicely. Unfortunately, I have to create a schema that will work on Oracle as well as PostgreSQL, by which I mean that a single set of Java/JDBC code has to work

Re: [SQL] Best way to simulate Booleans

2009-07-07 Thread Dirk Jagdmann
The most transportable method would be to use either a char(1) or an int with a check constraint. mybool char(1) check (mybool in ('t','f')) mybool int check (mybool =0 and =1) I would decide depending on the application requirement. If my Oracle should look similar to PostgreSQL use the

Re: [SQL] Best way to simulate Booleans

2009-07-07 Thread Simon Riggs
On Tue, 2009-07-07 at 00:13 -0600, Scott Marlowe wrote: On Mon, Jul 6, 2009 at 7:22 PM, Peter Headlandpheadl...@actuate.com wrote: I know, I know, PostgreSQL has Booleans that work very nicely. Unfortunately, I have to create a schema that will work on Oracle as well as PostgreSQL, by

Re: [SQL] Best way to simulate Booleans

2009-07-07 Thread Greg Stark
On Tue, Jul 7, 2009 at 10:17 AM, Simon Riggssi...@2ndquadrant.com wrote: Integer works best since it converts easily to boolean mybool smallint check (mybool in (0, 1)) You can use char also, but the syntax is less clear. Hm, I was going to suggest using boolean in postgres and making a

[SQL] Best way to simulate Booleans

2009-07-06 Thread Peter Headland
I know, I know, PostgreSQL has Booleans that work very nicely. Unfortunately, I have to create a schema that will work on Oracle as well as PostgreSQL, by which I mean that a single set of Java/JDBC code has to work with both databases. I have an XML meta-schema that enables me to generate