Database Structuring Rule: Default Constraints
In a recent development, the Geeks table in our database, suspected to be managed using DBMS-SQL, has undergone some changes.
Firstly, the table now contains 7 rows of data, following the insertion of new rows. The new row for Hema, however, retains the default value 'Noida' for the Location column, as the default constraint was dropped after her row was inserted.
The syntax for dropping a DEFAULT constraint is as follows:
This change has also affected the new row for Payal, which now contains a NULL value for the Location column.
In a move to ensure more control over the data, the default constraint for the Location column no longer applies to new rows in the Geeks table. Instead, new rows, such as those for Mira and Komal, now have explicit values for Name, Age, and Location. These new rows were added to the Geeks table using SQL.
Here's a glimpse of the query used to insert these new rows:
It's worth noting that these changes do not affect the existing data in the table, they only apply to new rows being inserted.
Lastly, a search of the database's metadata did not reveal any information about the username that created the table "Geeks." This information, unfortunately, remains undisclosed.
Stay tuned for more updates on our database and the Geeks table!
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