How to Reset the Sequence in Oracle Plsql?

In PL/SQL, sequences are commonly used to generate unique primary key values for tables. However, manual inserts, deletes or other operations can cause the sequence to become out of sync with the actual data. Resetting the sequence involves finding the maximum current value in the table and adjusting the sequence to continue from that point.

Syntax:

The syntax for resetting a PL/SQL sequence involves identifying the maximum current value in the table and adjusting the sequence using the ALTER SEQUENCE statement:

-- Syntax for resetting a PL/SQL sequence
ALTER SEQUENCE sequence_name INCREMENT BY value;
SELECT sequence_name.NEXTVAL FROM dual;
ALTER SEQUENCE sequence_name INCREMENT BY 1;

Resetting a PL/SQL primary key sequence is an important task to ensure that the sequence values align with the current state of the table. When a sequence falls out of sync with the data in a table, it can lead to issues where new records receive primary key values that conflict with existing data.In this article, we will see How to reset the PL/SQL primary key sequence when it falls out of sync. using the syntax, and methods and with some of the examples that will help to understand the process.