How can you change comments in Oracle database?
To update the comments in an Oracle database, you can use the following SQL statement:
COMMENT ON TABLE table_name IS 'new_table_comment';
COMMENT ON COLUMN table_name.column_name IS 'new_column_comment';
In this case, table_name refers to the name of the table whose comments are to be modified, column_name refers to the name of the column where comments are to be modified, new_table_comment denotes the new comment for the table, and new_column_comment refers to the new comment for the column.
To change the comments of the table employees to “This table stores employee information,” you can use the following SQL statement:
COMMENT ON TABLE employees IS 'This table stores employee information';
You can use the following SQL statement to change the comment for the column “first_name” in the employees table to “First name of the employee”:
COMMENT ON COLUMN employees.first_name IS 'First name of the employee';
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