| Property | Description |
|---|---|
| Parameter type | String |
| Syntax | NLS_COMP = { BINARY | LINGUISTIC | ANSI } |
| Default value | BINARY |
| Modifiable | ALTER SESSION |
| Basic | No |
NLS_COMP specifies the collation behavior of the database session.
Values:
BINARY
Normally, comparisons in the WHERE clause and in PL/SQL blocks is binary unless you specify the NLSSORT function.
LINGUISTIC
Comparisons for all SQL operations in the WHERE clause and in PL/SQL blocks should use the linguistic sort specified in the NLS_SORT parameter. To improve the performance, you can also define a linguistic index on the column for which you want linguistic comparisons.
ANSI
A setting of ANSI is for backwards compatibility; in general, you should set NLS_COMP to LINGUISTIC
See Also:
Oracle Database Globalization Support Guide for more information on setting this parameter