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Sequence functions in GoogleSQL | Spanner

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GoogleSQL for Spanner supports the following sequence functions.

GET_INTERNAL_SEQUENCE_STATE(SEQUENCE sequence_identifier)

Description

Gets the current sequence internal counter before bit reversal. This function is useful for import or export, and migrations. If GET_NEXT_SEQUENCE_VALUE is never called on the sequence, then this function returns NULL.

Arguments

• sequence_identifier: The ID for the sequence.

Return Data Type

INT64

Example

SELECT GET_NEXT_SEQUENCE_VALUE(SEQUENCE MySequence) AS next_value;

/*---------------------*
 | next_value          |
 +---------------------+
 | 5980780305148018688 |
 *---------------------*/

SELECT GET_INTERNAL_SEQUENCE_STATE(SEQUENCE MySequence) AS sequence_state;

/*----------------*
 | sequence_state |
 +----------------+
 | 399            |
 *----------------*/

GET_NEXT_SEQUENCE_VALUE(SEQUENCE sequence_identifier)

Description

Gets the next integer in a sequence.

Arguments

• sequence_identifier: The ID for the sequence.

Return Data Type

INT64

Example

Create a table where its key column uses the sequence as a default value.

CREATE TABLE Singers (
  SingerId INT64 DEFAULT (GET_NEXT_SEQUENCE_VALUE(SEQUENCE MySequence)),
  a STRING(MAX),
) PRIMARY KEY (SingerId);

Obtain a sequence value in a read-write transaction and use it in an INSERT statement.

SELECT GET_NEXT_SEQUENCE_VALUE(SEQUENCE MySequence) as next_id;
INSERT INTO Singers(SingerId, a) VALUES (next_id, 1);

Use the sequence functions independently in the GoogleSQL DML.

INSERT INTO Singers (SingerId) VALUES (GET_NEXT_SEQUENCE_VALUE(SEQUENCE MySequence);

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-07-09 UTC.

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