Oracle® Database Reference 10g Release 2 (10.2) Part Number B14237-02 |
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Property | Description |
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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