Adding More Data to the Test Table in MySQL

Q

How To Add More Data to the Testing Table in MySQL?

✍: FYIcenter.com

A

If you want to continue with other tutorial exercises in this FAQ collection, you need to add more data to the testing table. Follow the script below to add a new column and:

mysql> ALTER TABLE fyi_links ADD COLUMN tag VARCHAR(8);
mysql> UPDATE fyi_links SET tag = 'DEV' WHERE id = 101;
mysql> UPDATE fyi_links SET tag = 'DBA' WHERE id = 102;
mysql> UPDATE fyi_links SET tag = 'SQA' WHERE id = 103;

mysql> INSERT INTO fyi_links VALUES (104, 
   'www.mysql.com', '', '0', '2006-01-01', 'DBA');
mysql> INSERT INTO fyi_links VALUES (105,
   'www.oracle.com', '', '0', '2005-01-01', 'DBA');
mysql> INSERT INTO fyi_links VALUES (106,
   'www.php.net', '', '0', '2004-01-01', 'DEV');
mysql> INSERT INTO fyi_links VALUES (107, 
   'www.winrunner.com', '', '0', '2003-01-01', 'SQA');

mysql> UPDATE fyi_links SET counts = FLOOR(RAND()*10);

mysql> SELECT id, url, counts, DATE(created), tag 
   FROM fyi_links;
+-----+-------------------+--------+---------------+------+
| id  | url               | counts | DATE(created) | tag  |
+-----+-------------------+--------+---------------+------+
| 101 | dev.fyicenter.com |      4 | 2006-04-30    | DEV  |
| 102 | dba.fyicenter.com |      3 | 2006-07-01    | DBA  |
| 103 | sqa.fyicenter.com |      6 | 2006-07-01    | SQA  |
| 104 | www.mysql.com     |      1 | 2006-01-01    | DBA  |
| 105 | www.oracle.com    |      7 | 2005-01-01    | DBA  |
| 106 | www.php.net       |      4 | 2004-01-01    | DEV  |
| 107 | www.winrunner.com |      8 | 2003-01-01    | SQA  |
+-----+-------------------+--------+---------------+------+
7 rows in set (0.00 sec)

⇒ Sorting Query Output in MySQL

⇐ Select Rows with WHERE Clause in MySQL

⇑ SELECT Query Statements with GROUP BY in MySQL

⇑⇑ MySQL Database Tutorials

2017-11-02, 2573🔥, 0💬

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How To Select Some Columns from a Table in MySQL? If you want explicitly tell the query to return some columns, you can specify the column names in the SELECT clause. The following select statement returns only two columns, "id" and "url" from the table "fyi_links": mysql> SELECT id, url FROM... 2017-11-05, 2591🔥, 0💬

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