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Questions by thor

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DBMS-11
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DBMS-10
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DBMS-9
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34
DBMS-8
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DBMS-7
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DBMS-6
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DBMS-5
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DBMS-3
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40
DBMS-2
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DBMS-1
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42
digital
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43
Relational DBMS
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44
Please explain??
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45
Is this question in Syllabus?
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46
Am i right?
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47
2PL doubt
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48
Relational operators property
An operator on relations is called monotone whenever we add a tuple to one of its arguments, the result contains all the tuples that it contained before adding the tuple plus perhaps more tuples. Which of the following operator is monotone? $\Join$ $\cap$ $-$ $\large \sigma$
An operator on relations is called monotone whenever we add a tuple to one of its arguments, the result contains all the tuples that it contained before adding the tuple ...
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49
DBMS ques
Means I have to choose options which are always correct rt ??
Means I have to choose options which are always correct rt ??
1 votes
0 answers
50
How to approach??
Suppose a block holds either 3 records or 10(key,pointer) pairs. If $n$ is the number of records and Dense indexing is used then how many blocks do we need to hold data file ?
Suppose a block holds either 3 records or 10(key,pointer) pairs. If $n$ is the number of records and Dense indexing is used then how many blocks do we need to hold data f...
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