Below are some rows of the PROVIDERS table for a factory: PCODE NAME PHONE 10192 Hans, Inc. 231 - 3092 98411 Tools and More 231 - 1029 0489035 Motors Inc. 993 - 1821 All providers from the factory zone of the city start with 231. You want to get the providers that are in the factory zone of the city. Which of the following is more appropriate? a. SELECT * FROM PROVIDERS WHERE PHONE LIKE ‘%231%’ b. SELECT * FROM PROVIDERS WHERE PHONE LIKE ‘% 231’ c. SELECT * FROM PROVIDERS WHERE PHONE LIKE ‘___ 231 ___’ d. SELECT * FROM PROVIDERS WHERE PHONE LIKE ‘231%’
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.
|
PCODE |
NAME |
PHONE |
|
10192 |
Hans, Inc. |
231 - 3092 |
|
98411 |
Tools and More |
231 - 1029 |
|
0489035 |
Motors Inc. |
993 - 1821 |
All providers from the factory zone of the city start with 231. You want to get the providers that are in the factory zone of the city. Which of the following is more appropriate?
| a. |
SELECT * FROM PROVIDERS WHERE PHONE LIKE ‘%231%’ |
|
| b. |
SELECT * FROM PROVIDERS WHERE PHONE LIKE ‘% 231’ |
|
| c. |
SELECT * FROM PROVIDERS WHERE PHONE LIKE ‘___ 231 ___’ |
|
| d. |
SELECT * FROM PROVIDERS WHERE PHONE LIKE ‘231%’ |
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