Documentation forWeb Help Desk

Database datatypes

Beginning in WHD 12.0, the application only supports the following database software:

  • Microsoft SQL Server (external database)
  • MySQL (external database)
  • PostgreSQL (embedded database)

If you are running a version prior to WHD 12.0, see Upgrade WHD for details about upgrading your WHD software and database.

The following table provides a reference for mapping data types from other databases to PostgreSQL (and to each other).

WHD FrontBase Oracle Open
Base		 Postgre
SQL		 MySQL SQL Server
PK INTEGER NUMBER int int4 INT int
currency DECIMAL NUMBER money numeric DECIMAL money
datetime TIMESTAMP DATE datetime timestamptz DATETIME datetime
integer INTEGER NUMBER int int4 INT int
pk BLOB BLOB object bytea BLOB varbinary(max)
data BLOB BLOB object bytea LONGBLOB varbinary(max)
text VARCHAR
1000000		 CLOB char4000 text TEXT nvarchar(max)
varchar VARCHAR VARCHAR2 char varchar VARCHAR nvarchar