Database Management System MCQs - Chapter 14
Schema Definition, Constraints, Queries and Views Quiz Questions & Answers PDF Download - 7
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The Quiz: The concatenation operator in SQL which can concatenate two strings is denoted as; "Schema Definition, Constraints, Queries and Views" App (iOS, Android) with answers: Double vertical bar; Double quotation marks; Single vertical bar; Triple vertical bar; for online graduate programs. Study Advantages of DBMS Quiz Questions, download Amazon eBook (Free Sample) for computer majors.
Schema Definition, Constraints, Queries & Views Exam Questions and Answers PDF Download: Test 7
The concatenation operator in SQL which can concatenate two strings is denoted as
- double quotation marks
- double vertical bar
- single vertical bar
- triple vertical bar
In the statement DECIMAL () to specify numeric data type, the number of decimal digits is called
- the string
- the numeric strip
- the precision
- the scale
Considering the change in schema statement in SQL, the command which is used to delete records of table and leave the definition of table for later use is classified as
- DELETE command
- DROP TABLE command
- PRIMARY KEY command
- SECONDARY KEY command
In standard query language, the rows and columns are called respectively
- tuple and attributes
- quantifiers and identifiers
- predicator and indicator
- non-identifiers and quantifiers
If the length of bit string is multiple of 4 then it can be specified with the notation called
- fixed string notation
- triple decimal notation
- double decimal notation
- hexadecimal notation
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Computer Networks Mock Tests
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Computer Networks MCQ with Answers
- Parameter that refers to recording and broadcasting of picture is
- An asymmetric-key (or public-key) cipher uses
- In a constellation diagram, a signal element type is represented as a
- Non return-to-zero-level (NRZ-L) and Non return-to-zero-invert (NRZ-I) both have an average signal rate of
- Terms that control flow and errors in full duplex switched Ethernet is called
Schema Definition, Constraints, Queries & Views MCQ Book Questions
- Parameter that refers to recording and broadcasting of picture is
- An asymmetric-key (or public-key) cipher uses
- In a constellation diagram, a signal element type is represented as a
- Non return-to-zero-level (NRZ-L) and Non return-to-zero-invert (NRZ-I) both have an average signal rate of
- Terms that control flow and errors in full duplex switched Ethernet is called