The Teradata Database offers five standard collation sequences in which data can be defined as CASESPECIFIC or NOT CASESPECIFIC. This affects how the five collation sequences collate and compare data.
The five collations, determined either by default or explicit use of the SET SESSION COLLATION statement, are:
- ASCII
- EBCDIC
- CHARSET_COLL
- JIS_COLL
- MULTINATIONAL
CASESPECIFIC or NOT CASESPECIFIC can be chosen at table definition time, or specified as part of the SQL statement.
The default collation sequence is based upon the client type:
- EBCDIC for mainframe clients
- ASCII for all other clients