Multiple Choice Questions
1 .Which SQL statement is not used for Database updates.
1.INSERT 2. UPDATE
3. DELETE 4.SELECT
2.The_________ statement is the most important statement in the language and is used to express a query.
1.INSERT 2. UPDATE 3. DELETE 4.SELECT
3.There are _______ types of subquery.
1.ONE 2. THREE 3.FIVE 4.SEVEN
4. the columns of the result table come from more than one table, ________must be used.
- AND 2. && 3. JOIN 4.NONE
5.DBMS based on ______ .
1.Data 2.user 3.SQL 4. ALL
6.The SQL programming language was first developed in the _______ .
1. 1970 1975 3. 1980 4. 1982
7.The standard specifies ______different data types for data in an SQL database.
- TWO 2.FOUR 3.SIX 4.EIGHT
8.Although SQL was originally an ________ concept.
1.HP 2.DELL 3.IBM 4.NONE
9.A vertical bar ( | ) indicates a choice among _______ .
1.same 2. Alternatives 3.both
10.In practice, the DDL statements are used to create the database structure.
1.DML 2.DDL 3.SQL 4.BNF
31.All non-numeric data values must be enclosed in _______.
- Double quotes 2. Single quotes 3.square brackets 4. curly braces
32.Which one is not an comparison operator for SQL.
- = 2. > 3. !> 4.&&
33.ANDs are evaluated before _____.
- OR 2. NOT 3. BOTH a & b 4. NONE
34.An expression is evaluated_______ .
- left to right 2. Right to left 3. Depend on operators used
35.Which clause must always be the last clause of the SELECT statement.
1.WHERE 2. ORDER BY 3. COUNT 4. GROUP BY
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