Add Auto Increment Key Id Column PostgreSQL Existing Table

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Add Auto Increment Key Id Column PostgreSQL Existing Table

In this youtube short postgresql tutorial. How To add an auto-increment primary key column named "ID" to an existing PostgreSQL table, use the ALTER TABLE statement. For instance, if you have a table named "your_table," you can execute with alter command adds a new column called "ID" with an auto-incrementing integer value, serving as the primary key. The SERIAL data type automatically generates unique values for each row, ensuring data integrity and facilitating efficient record retrieval and updates.

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What if i have an existing column EmployeD integer Primary Key and i want to make it auto increment. Please not that my table have existing data and there are gaps in EmployeID.. so the auto increment should start from the latest max employee id. Thank you in advance if you could provide query for this.

muhammadhammad

Add Auto Increment Key Id Column PostgreSQL Existing Table

Add Auto Increment Key Id Column PostgreSQL Existing Table

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