What is the full form of SQL?
A. Structured Query Language
B. Structured Query List
C. Simple Query Language
D. None of these
Answer: Option A
Solution(By Examveda Team)
SQL (Structured Query Language) is a special-purpose programming language designed for managing data held in a relational database management system (RDBMS).
Originally based upon relational algebra and tuple relational calculus, SQL consists of a data definition language and a data manipulation language. The scope of SQL includes data insert, query, update and delete, schema creation and modification, and data access control.
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A. Structured Query Language
B. Structured Query List
C. Simple Query Language
D. None of these
Which is the subset of SQL commands used to manipulate Oracle Database structures, including tables?
A. Data Definition Language(DDL)
B. Data Manipulation Language(DML)
C. Both of above
D. None
Which operator performs pattern matching?
A. BETWEEN operator
B. LIKE operator
C. EXISTS operator
D. None of these
What operator tests column for the absence of data?
A. EXISTS operator
B. NOT operator
C. IS NULL operator
D. None of these
Which of the following join is also called as an 'inner-join'?
Equijoin
Self-Join
Non-Equijoin
None of these
SQL (Structured Query Language) is a special-purpose programming language designed for managing data held in a relational database management system (RDBMS).
what is schema ? how relational algebra and tuple relational calculus helps to
create rdbms