IT Trainer Questions

Its a Needle. Needle has an eye but can't see.

Brift means the root word mili; the suffix amint means the same as the English suffix –tant; the root word ufton– means occupy; el means the suffix –ied of occupied; and alene means the suffix –tion. (Because ufton means occupy, choices a, b, and d can be easily ruled out.)

Here all the options given are important functions of Earth's atmosphere.

A Subquery or Inner query or a Nested query is a query within another SQL query and embedded within the WHERE clause.

Subqueries are most frequently used with the SELECT statement. The basic syntax is as follows::

SELECT column_name [, column_name ]
FROM table1 [, table2 ]
WHERE column_name OPERATOR
(SELECT column_name [, column_name ]
FROM table1 [, table2 ]
[WHERE])

A subquery is used to return data that will be used in the main query as a condition to further restrict the data to be retrieved.

Subqueries can be used with the SELECT, INSERT, UPDATE, and DELETE statements along with the operators like =, <, >, >=, <=, IN, BETWEEN, etc.

There are a few rules that subqueries must follow −

1. Subqueries must be enclosed within parentheses.

2. A subquery can have only one column in the SELECT clause, unless multiple columns are in the main query for the subquery to compare its selected columns.

3. An ORDER BY command cannot be used in a subquery, although the main query can use an ORDER BY. The GROUP BY command can be used to perform the same function as the ORDER BY in a subquery.

4. Subqueries that return more than one row can only be used with multiple value operators such as the IN operator.

5. The SELECT list cannot include any references to values that evaluate to a BLOB, ARRAY, CLOB, or NCLOB.

6. A subquery cannot be immediately enclosed in a set function.

7. The BETWEEN operator cannot be used with a subquery. However, the BETWEEN operator can be used within the subquery.

NOTHING.

A rich man needs nothing, a poor man has nothing with him, and if we eat nothing, we will die.

CTRL + ] is a computer shortcut and is used for Increase in font size.

Shortcuts :

Re-do ---- Ctrl + Y

Right align text ---- Ctrl + R

Expand or collapse the ribbon ---- Ctrl + F1

Ctrl + F is a shorcut keyword and it is used for searching the word you want in the large document in the M.S. Word.

They is incorrect when talking of the television channel.

New is redundant.

And which must have a clear antecedent.

Hence, Only Option A satisfies and clears all the flaws in the given sentence.