What is x in the following MySQL statement?
DELETE FROM x USING x LEFT JOIN y ON x.col = y.col;
DELETE FROM x USING x LEFT JOIN y ON x.col = y.col;
A. column name
B. table name
C. server name
D. database name
Answer: Option B
Solution (By Examveda Team)
This MySQL statement is used to delete rows from a table. Let's break it down:DELETE FROM x: This part tells MySQL that we want to delete rows from a table. The 'x' represents the name of the table we're deleting from.
USING x: This specifies the table we're using for the deletion operation. It's usually the same as the table mentioned in the 'DELETE FROM' part.
LEFT JOIN y ON x.col = y.col: This part is a join condition that connects the table 'x' with another table 'y' using a shared column named 'col'. It basically says, "Delete rows from 'x' based on a comparison with rows in 'y'."
Therefore, 'x' in the statement refers to the table name.
So the correct answer is Option B: table name.
Related Questions on MySQL Miscellaneous
How is communication established with MySQL?
A. SQL
B. Network calls
C. A programming language like C++
D. APIs
Which type of database management system is MySQL?
A. Object-oriented
B. Hierarchical
C. Relational
D. Network
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