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  1. DQL Statements
Interview Questions and Answer
Options:
a. Dynamic Query language
b. Data Query Language?
Reveal Answer
Options:
a. Select * from <table> where <column> LIKE
b. Select * from <table> where <column> LIKE
c. Select * from <table> where <column> LIKE
d. Select * from <table> where <column> LIKE
Reveal Answer
Options:
a. Select * from employee where commission =NULL
b. Select * from employee where commission = ‘ ‘
c. Select * from employee where commission IS NULL
d. Select * from employee where commission == NULL
Reveal Answer
Options:
a. Varchar
b. Text
c. Char
d. Nchar
Reveal Answer
Options:
a. ORDER BY statement can be used to order multiple columns
b. ORDER BY statement cannot be used to order multiple columns
Reveal Answer
Options:
a. GROUP BY statement can be used to group multiple columns
b. GROUP BY statement cannot be used to group multiple columns
Reveal Answer
Options:
a. It can use only those columns that are present in the SELECT statement
b. It can use aggregate functions
c. It is used to filter the rows got after applying GROUP BY
Reveal Answer
Options:
a. Yes
b. No
Reveal Answer
Options:
a. Yes
b. No
Reveal Answer
Options:
a. select count from employee
b. select count(*) from employee
c. select distinct count(*) from employee
d. select distinct count from employee
Reveal Answer
Options:
a. query plan
b. execution plan
c. optimized plan
Reveal Answer
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