Which SQL command is used to delete data from a table?Select one:a. DELETEb. ERASEc. TRUNCATEd. REMOVE

1. Break Down the Problem

We need to identify which SQL command is used specifically for deleting data from a table. There are four options provided: DELETE, ERASE, TRUNCATE, and REMOVE.

2. Relevant Concepts

• DELETE: This command is used to remove specific records from a table based on a condition specified in a WHERE clause. If no condition is provided, it will delete all records from the table but will not remove the table itself.
• ERASE: This is not a standard SQL command for deleting data.
• TRUNCATE: This command removes all rows from a table without logging individual row deletions. It is more efficient than DELETE for removing all records but does not allow for conditional deletions or a rollback.
• REMOVE: This is not a standard SQL command for deleting data.

3. Analysis and Detail

Upon reviewing the options:

• DELETE is the correct command for focusing on specific records or deleting all records.
• TRUNCATE is also a valid command for removing all records but cannot be used conditionally.
• ERASE and REMOVE are not recognized SQL commands.

4. Verify and Summarize

The correct command for deleting specific data from a table is the DELETE command. If you want to remove all records without conditions, TRUNCATE can be used, but for targeting specific records, DELETE is essential.

Final Answer

The SQL command used to delete data from a table is a. DELETE.