Android Room Primary Key Auto Generate

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  1. Android Room Primary Key
  2. Unique Key
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AUTO INCREMENT Field. Auto-increment allows a unique number to be generated automatically when a new record is inserted into a table. Often this is the primary key field that we would like to be created automatically every time a new record is inserted.

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JDBCObject Oriented ProgrammingProgramming
Android Room Primary Key Auto Generate

While creating a table, in certain scenarios, we need values to column such as ID, to be generated/incremented automatically. Various databases support this feature in different ways.

In MySQL database you can declare a column auto increment using the following syntax.

MySQL query to create a table with auto-incremented column.

Android Room Primary Key

Example

Unique Key

Android Room Primary Key Auto Generate

Following JDBC program establishes a connection with MYSQL database and creates a query with an auto-incremented column.

Output

Verification

The DESCRIBE command in MYSQL gives the description of a table, you can verify the creation of the table with auto-incremented column using it, as shown below −

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