Questions

HIV is a virus that damages the immune system. HIV is a lifelong condition, and without treatment, a person with HIV can develop AIDS.

TABC stands for Texas Alcoholic Beverage Commission. The Texas Alcoholic Beverage Commission regulates the sales, taxation, production, trade, and advertising of alcoholic beverages in Texas. Alcohol Seller/server Training regulated by this regulatory body is also called TABC Certification. It makes the rules the rest of us have to follow, and if you want to get a job serving alcohol in Texas, getting TABC certified is your first step.

Any type of insurance, be it home, auto, life, health, etc. are based on a principle of division of risk.

Division of Risk :: This is based on how much risk the insurer estimates the insured's coverage to be. The riskier the opportunity (bad health, area the home is in) the higher the premium costs.

A daisy-wheel printer works on the same principle as a ball-head typewriter. Daisy wheel printer is a type of impact printer invented in 1969.

The daisy wheel is a disk made of plastic or metal on which characters stand out in relief along the outer edge. To print a character, the printer rotates the disk until the desired letter is facing the paper.

In the summit clash of the 37th and final edition of the Hockey Champions Trophy at Breda, the Netherlands, India lost to defending champions Australia via penalty shoot-off. The match went into the shoot-off after both the teams were locked at 1-1 in regulation time.

One difference is while using the include page directive, in translation time it is creating two servelts. But, while using the include action tag, in translation time it is creating only one servlet.

A SHADOW can crawl on the earth and can rise on the pillar.

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.