Within the WHERE clause, the FROM clause, and collection subqueries, you can utilise the UNION and UNION ALL operators in SELECT statement subqueries.
We may also join multiple tables and create a new table with data using the SELECT INTO method.
To merge the result sets of two or more SELECT statements, use the SQL UNION ALL operator. Between the multiple SELECT statements, it does not eliminate duplicate rows (all rows are returned). Within the UNION ALL, each SELECT statement must have the same amount of fields in the result sets with similar data types.
The SELECT INTO statement is used to copy data from one table to another.
The UNION operator combines the results of multiple SELECT queries into a single query.
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Arvind Kumar
5
very nice course for begginer to under stand
H
hemant
5
Hello sir, explaination is excellent. I have a request please send the db in excel or SQL file
J
Juboraj Juboraj
4
Explain details & easy to understand.
A
Aman Kanaujia
4
All good , but provide the data also for the assignment , Without data the interest is less day by day from the course. So, try to solve this problem as asap.
S
Snehil
4
Everything is good but keyboard sounds more harsh and overlap your voice whereas this course is best.
F
FAROOK MOHAMMAD
5
Hello sir, explaination is excellent. I have a request please send the db in excel or SQL file.
H
Hari Prakash
4
In SQL Join Function's 2nd video - Teacher's voice dose not match with background content that are plays
A
Aakash Mavar
5
Hello sir
Mera Abhi graduation hu he Mene Mechanical Engineering BTech ki Hai me Data analysis me Apna career Bana skat ho Kya
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