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Querying and SQL Functions

CBSE · Class 12 · Informatics Practices

Flashcards for Querying and SQL Functions — CBSE Class 12 Informatics Practices. Quick Q&A cards covering key concepts, definitions, and formulas.

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Card 1SQL में फ़ंक्शंस

SQL फ़ंक्शनों को किस आधार पर वर्गीकृत किया जाता है, कि वे कितनी पंक्तियों पर कार्य करते हैं?

Answer

SQL फ़ंक्शंस को सिंगल रो फ़ंक्शंस और एग्रीगेट फ़ंक्शंस में वर्गीकृत किया गया है। सिंगल रो फ़ंक्शंस एक बार में एक पंक्ति पर कार्य करते हैं और प्रति पंक्ति एक मान लौटाते हैं। एग्रीगेट फ़ंक्शंस पंक्तियों

Card 2Functions in SQL

What are SQL functions classified into, based on how many rows they act on?

Answer

SQL functions are classified into Single row functions and Aggregate functions. Single row functions act on one row at a time and return one value per row. Aggregate functions act on a set of rows and

Card 3Functions in SQL

What is another name for Single row functions?

Answer

Single row functions are also known as Scalar functions. They can be used in the SELECT, WHERE, and ORDER BY clauses.

Card 4SQL में फ़ंक्शंस

एकल पंक्ति वाले कार्यों का दूसरा नाम क्या है?

Answer

एकल पंक्ति वाले फलन को अदिश फलन भी कहा जाता है। इनका उपयोग SELECT, WHERE, and ORDER BY clauses. में किया जा सकता है।

Card 5संख्यात्मक फलन

SQL में गणित के फलन क्या करते हैं? उदाहरण दीजिए।

Answer

गणित के फलन संख्यात्मक इनपुट लेते हैं और संख्यात्मक आउटपुट देते हैं। उदाहरण हैं POWER(X,Y), ROUND(N,D), और MOD(A,B)। उदाहरण के लिए, POWER(2,3) का मान 8 है, ROUND(2912.564,1) का मान 2912.6 है, और MOD(2

Card 6Numeric Functions

What do math functions in SQL do? Give examples.

Answer

Math functions take numeric input and return numeric output. Examples are POWER(X,Y), ROUND(N,D), and MOD(A,B). For example, POWER(2,3) gives 8, ROUND(2912.564,1) gives 2912.6, and MOD(21,2) gives 1.

Card 7Numeric Functions

What does POWER(X,Y) do, and how is it related to POW(X,Y)?

Answer

POWER(X,Y) calculates X to the power Y. POW(X,Y) is the same function and can also be written as POW(X,Y). Here, X is the base and Y is the exponent.

Card 8संख्यात्मक फलन

POWER(X,Y) क्या करता है, और यह POW(X,Y) से कैसे संबंधित है?

Answer

POWER(X,Y), X की घात Y की गणना करता है। POW(X,Y) वही फलन है और इसे POW(X,Y) के रूप में भी लिखा जा सकता है। यहाँ X आधार है और Y घातांक है।

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Querying and SQL Functions covers several key topics that are frequently asked in CBSE Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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