Suppose that you have the following table: CREATE TABLE coupons ( coupon id INTEGER name VARCHAR2 (30) duration INTERVAL YEAR (3) TO MONTH Now, considers the following INSERT statement: INSERT INTO coupons (coupon id, name, duration) VALUES (4, BD1.5 Corn Flakes' INTERVAL 1- 3 YEAR TO MONTH); The above INSERT statement stores the following data: 4 BD1.5 Corn Flakes +000-14 4 BD1.5 Corn Flakes +014-00 (c) 4 BD1.5 Corn Flakes +014 None of the above
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
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