Can SELECT Statements Be Used on Views

Q

Can SELECT Statements Be Used on Views? - MySQL FAQs - SQL SELECT Query Statements with GROUP BY

✍: FYIcenter.com

A

Select (query) statements can be used on views in the same way as tables. The following tutorial exercise helps you creating a view and running a query statement on the view:

mysql> CREATE VIEW myLinks AS SELECT * FROM fyi_links 
   WHERE url LIKE '%fyi%';
Query OK, 0 rows affected (0.49 sec)

mysql> SELECT tag, counts, url, DATE(created) 
   FROM myLinks ORDER BY counts DESC;
+------+--------+-------------------+---------------+
| tag  | counts | url               | DATE(created) |
+------+--------+-------------------+---------------+
| SQA  |      6 | sqa.fyicenter.com | 2006-07-01    |
| DEV  |      4 | dev.fyicenter.com | 2006-04-30    |
| DBA  |      3 | dba.fyicenter.com | 2006-07-01    |
+------+--------+-------------------+---------------+
3 rows in set (0.00 sec)

2007-05-11, 5290👍, 0💬

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Can Group Functions Be Mixed with Non-group Selection Fields
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How To Sort the Query Output
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How To Use SELECT Statement to Count the Number of Rows
How To Use SELECT Statement to Count the Number of Rows? - MySQL FAQs - SQL SELECT Query Statements with GROUP BY If you want to count the number of rows, you can use the COUNT(*) function in the SELECT clause. The following tutorial exercise shows you some good example: mysql> SELECT COUNT(*) FROM ... 2007-05-11, 5636👍, 0💬

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Can the Query Output Be Sorted by Multiple Columns
Can the Query Output Be Sorted by Multiple Columns? - MySQL FAQs - SQL SELECT Query Statements with GROUP BY You can specifying multiple columns in the ORDER BY clause as shown in the following example statement, which returns employees' salaries sorted by department and salary value: mysql> SELECT ... 2007-05-11, 5473👍, 0💬

How To Use Group Functions in the SELECT Clause
How To Use Group Functions in the SELECT Clause? - MySQL FAQs - SQL SELECT Query Statements with GROUP BY If group functions are used in the SELECT clause, they will be used on the rows that meet the query selection criteria, the output of group functions will be returned as output of the query. The... 2007-05-11, 5388👍, 0💬

What Are Group Functions
What Are Group Functions? - MySQL FAQs - SQL SELECT Query Statements with GROUP BY Group functions are functions applied to a group of rows. Examples of group functions are: COUNT(*) - Returns the number of rows in the group. MIN(exp) - Returns the minimum value of the expression evaluated on each r... 2007-05-11, 5344👍, 0💬

Can SELECT Statements Be Used on Views
Can SELECT Statements Be Used on Views? - MySQL FAQs - SQL SELECT Query Statements with GROUP BY Select (query) statements can be used on views in the same way as tables. The following tutorial exercise helps you creating a view and running a query statement on the view: mysql> CREATE VIEW myLinks A... 2007-05-11, 5291👍, 0💬

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