Sql-Reference: CURRVAL

Mon, 01 Jan 0001 00:00:00 +0000

Returns the last value across all nodes that was set by NEXTVAL on this sequence in the current session. If NEXTVAL was never called on this sequence since its creation, OpenText™ Analytics Database returns an error.

Syntax

CURRVAL ('[[database.]schema.]sequence-name')

Parameters

[database.]schema: Database and schema. The default schema is public. If you specify a database, it must be the current database.
sequence-name: The target sequence

Privileges

SELECT privilege on sequence
USAGE privilege on sequence schema

Restrictions

You cannot invoke CURRVAL in a SELECT statement, in the following contexts:

WHERE clause
GROUP BY clause
ORDER BY clause
DISTINCT clause
UNION
Subquery

You also cannot invoke CURRVAL to act on a sequence in:

UPDATE or DELETE subqueries
Views

Examples

See Creating and using named sequences.

Sql-Reference: NEXTVAL

Mon, 01 Jan 0001 00:00:00 +0000

Returns the next value in a sequence. Call NEXTVAL after creating a sequence to initialize the sequence with its default value. Thereafter, call NEXTVAL to increment the sequence value for ascending sequences, or decrement its value for descending sequences.

Syntax

NEXTVAL ('[[database.]schema.]sequence')

Parameters

[database.]schema: Database and schema. The default schema is public. If you specify a database, it must be the current database.
sequence: Identifies the target sequence.

Privileges

SELECT privilege on sequence
USAGE privilege on sequence schema

Restrictions

You cannot invoke NEXTVAL in a SELECT statement, in the following contexts:

WHERE clause
GROUP BY clause
ORDER BY clause
DISTINCT clause
UNION
Subquery

You also cannot invoke NEXTVAL to act on a sequence in:

UPDATE or DELETE subqueries
Views

You can use subqueries to work around some of these restrictions. For example, to use sequences with a DISTINCT clause:

=> SELECT t.col1, shift_allocation_seq.NEXTVAL FROM (
     SELECT DISTINCT col1 FROM av_temp1) t;

Examples

See Creating and using named sequences.

OpenText Analytics Database 26.2.x – Sequence functions

Sql-Reference: CURRVAL

Syntax

Parameters

Privileges

Restrictions

Examples

See also

Sql-Reference: NEXTVAL

Syntax

Parameters

Privileges

Restrictions

Examples

See also