Q. Which of the following statements contains an error?

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Q. Insert into employee _____ (1002,Joey,2000);
In the given query which of the keyword has to be inserted ?

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Q. SELECT * FROM employee WHERE dept_name="Comp Sci";

In the SQL given above there is an error . Identify the error .

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Q. ’_ _ _ ’ matches any string of ______ three characters. ’_ _ _ %’ matches any string of at ______ three characters.

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Q. In SQL the spaces at the end of the string are removed by _______ function .

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Q. _____ operator is used for appending two strings.

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Q. The union operation is represented by

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Q. The intersection operator is used to get the _____ tuples.

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Q. The union operation automatically __________, unlike the select clause.

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Q. If we want to retain all duplicates, we must write ________ in place of union.

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Q. For like predicate which of the following is true.

i) % matches zero OF more characters.
ii) _ matches exactly one CHARACTER.

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Q. The number of attributes in relation is called as its

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Q. _____ clause is an additional filter that is applied to the result.

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Q. _________ joins are SQL server default

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Q. The _____________ is essentially used to search for patterns in target string.

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Q. A _____ indicates an absent value that may exist but be unknown or that may not exist at all.

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Q. If the attribute phone number is included in the relation all the values need not be entered into the phone number column . This type of entry is given as

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Q. The predicate in a where clause can involve Boolean operations such as and.The result of true and unknown is_______ false and unknown is _____ while unknown and unknown is _____

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Q. In a employee table to include the attributes whose value always have some value which of the following constraint must be used ?

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Q. Using the ______ clause retains only one copy of such identical tuples.

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