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SAP Sybase SQL Anywhere 16.0 » UltraLite - Database Management and Reference » UltraLite as a MobiLink client » UltraLite clients » Primary key uniqueness in UltraLite


Partition sizes

The partition size is any positive integer, although the partition size is generally chosen so that the supply of numbers within any one partition will rarely, if ever, be exhausted.

For columns of type INT or UNSIGNED INT, the default partition size is 216 = 65536; for columns of other types the default partition size is 232 = 4294967296. Since these defaults may be inappropriate, it is best to specify the partition size explicitly.

Default partition sizes for some data types are different in UltraLite applications than in SQL Anywhere databases. Declare the partition size explicitly if you want different databases to remain consistent.

 See also

Overriding the partition size for a GLOBAL AUTOINCREMENT column