What is sequence in sql with example?

What is sequence in sql with example?

A sequence is a list of numbers, in an ordered manner. For example, {1, 2, 3} is a sequence and {3, 2, 1} is also sequence but a different sequence. It is a user-defined schema object that produces a list of numbers in accordance to specified value in SQL server.

Whats a sequence in sql?

A sequence is a user-defined schema bound object that generates a sequence of numeric values according to the specification with which the sequence was created. The sequence of numeric values is generated in an ascending or descending order at a defined interval and can be configured to restart (cycle) when exhausted.

How to change the sequence in sql?

Sequences objects are created by using the CREATE SEQUENCE statement. Sequences are integer values and can be of any data type that returns an integer. The data type cannot be changed by using the ALTER SEQUENCE statement. To change the data type, drop and create the sequence object.

What is a sequence write its syntax?

Syntax to create a sequence is, CREATE SEQUENCE sequence-name START WITH initial-value INCREMENT BY increment-value MAXVALUE maximum-value CYCLE | NOCYCLE; The initial-value specifies the starting value for the Sequence. The increment-value is the value by which sequence will be incremented.

How do I query sequence in SQL?

Syntax: CREATE SEQUENCE sequence_name START WITH initial_value INCREMENT BY increment_value MINVALUE minimum value MAXVALUE maximum value CYCLE|NOCYCLE ; sequence_name: Name of the sequence. initial_value: starting value from where the sequence starts.

Why sequence is used in SQL?

SQL Server Sequence is used to create a sequence object and its properties can also be specified. A sequence object can be defined as a user-defined object which is bound to the schema that generates a numeric values sequence according to the increment value that is defined at the time of the creation of the sequence.

How do you restart a sequence in SQL Server?

In the SSMS GUI, navigate to Database Folder – [Database Name] – Programmability Folder – Sequences Folder. 4. Select the “Restart sequence” checkbox. You can enter the value you want to reset the sequence to, or keep the default value.