How To Create a Testing Table

Q

How To Create a Testing Table? - MySQL FAQs - Understanding SQL INSERT, UPDATE and DELETE Statements

✍: FYIcenter.com

A

If you want to practice DML statements, like INSERT, UPDATE and DELETE, you should create a testing table. The tutorial exercise shows you a good example:

mysql> CREATE TABLE fyi_links (id INTEGER PRIMARY KEY,
  url VARCHAR(80) NOT NULL,
  notes VARCHAR(1024),
  counts INTEGER,
  created TIMESTAMP DEFAULT CURRENT_TIMESTAMP());
  
Query OK, 0 rows affected (0.08 sec)

You should keep this table to practice other tutorial exercises presented in this collection.

2007-05-11, 4944👍, 0💬

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How Many Ways to Get the Current Time
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How To Specify Default Values in INSERT Statement
How To Specify Default Values in INSERT Statement? - MySQL FAQs - Understanding SQL INSERT, UPDATE and DELETE Statements If a column is defined with a default value in a table, you can use the key word DEFAULT in the INSERT statement to take the default value for that column. The following tutorial ... 2007-05-11, 5195👍, 0💬

What Is TIMESTAMP
What Is TIMESTAMP? - MySQL FAQs - Introduction to SQL Date and Time Handling A TIMESTAMP data type allows you to record a date and time like DATETIME data type. But it has some interesting features when used on a table column: The first TIMESTAMP column in a table will be assigned with the current d... 2007-05-11, 5157👍, 0💬

How To Extract a Unit Value from a Date and Time
How To Extract a Unit Value from a Date and Time? - MySQL FAQs - Introduction to SQL Date and Time Handling If you want to extract a specific date or time unit value out of a date or a time, you can use the EXTRACT(unit FROM expression) function. The tutorial exercise below gives you some good examp... 2007-05-11, 5148👍, 0💬

How To Insert a New Row into a Table
How To Insert a New Row into a Table? - MySQL FAQs - Understanding SQL INSERT, UPDATE and DELETE Statements To insert a new row into a table, you should use the INSERT INTO statement with values specified for all columns as shown in the following example: mysql> INSERT INTO fyi_links VALUES (101, 'd... 2007-05-11, 5133👍, 0💬

What Are DML Statements
What Are DML Statements? - MySQL FAQs - Understanding SQL INSERT, UPDATE and DELETE Statements DML (Data Manipulation Language) statements are statements to change data values in database tables. The are 3 primary DML statements: INSERT - Inserting new rows into database tables. UPDATE - Updating ex... 2007-05-11, 5124👍, 0💬

How To Insert Multiple Rows with One INSERT Statement
How To Insert Multiple Rows with One INSERT Statement? - MySQL FAQs - Understanding SQL INSERT, UPDATE and DELETE Statements If you want to insert multiple rows with a single INSERT statement, you can use a subquery instead of the VALUES clause. Rows returned from the subquery will be inserted the t... 2007-05-11, 5054👍, 0💬

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