Add Column to Oracle Table: Quick Guide

In Oracle database, you can add a column to a table using the ALTER TABLE statement. The specific steps are as follows:

  1. Open the SQL command line or client tool, and connect to the Oracle database.
  2. Use the following ALTER TABLE statement to add a new column:
ALTER TABLE table_name ADD column_name data_type;

In this case, table_name refers to the name of the table where a new column is being added, column_name refers to the name of the new column, and data_type refers to the data type of the new column.

  1. By executing the ALTER TABLE statement above, you can successfully add a new column to the table.

For example, if you want to add a new column named “age” with the data type integer to a table named “students,” you can use the following SQL statement:

ALTER TABLE students ADD age NUMBER;

When adding a new column to a table, make sure to pay attention to the data type and length of the new column to ensure consistency with the other columns in the table and avoid any data type mismatch issues.

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