What is the difference between join and union.
Answer Posted / preeti mishra
Join:- Joins are used to query data from two or more
tables, based on a relationship between certain columns in
these tables.
Union:- UNION operator combines two or more SELECT
statements.
| Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
how to drop an existing view in mysql? : Sql dba
What is user in sql?
What is triggering circuit?
Is there a way to automate sql execution from the command-line, batch job or shell script?
Is oracel sql developer written in java?
what are the other commands to know the structure of table using mysql commands except explain command? : Sql dba
Can we insert data into view?
What is the process of debugging?
Write the alter statement to enable all the triggers on the t.students table.
how to write date and time literals? : Sql dba
What is the difference between local variables and global variables?
What are primary key and foreign key and how they work?
Explain the select statement in sql?
How do you update a table in sql?
How to call shell script from pl sql procedure?