# Limitations on identifier length

Table 1. Identifier length limitations. The following table lists limitations on identifier lengths in Derby.
Identifier | Maximum number of characters allowed
--- | ---
constraint name | 128
correlation name | 128
cursor name | 128
data source column name | 128
data source index name | 128
data source name | 128
savepoint name | 128
schema name | 128
unqualified column name | 128
unqualified function name | 128
unqualified index name | 128
unqualified procedure name | 128
parameter name | 128
unqualified trigger name | 128
unqualified table name, view name, stored procedure name | 128

Parent topic: Derby limitations
Related reference
Limitations for database manager values
DATE, TIME, and TIMESTAMP limitations
Numeric limitations
String limitations
XML limitations