MySQL 30 - INT Data Type
The last section of videos covered the string data types, now we are going to move on to the numeric data types. This video is going to discuss the INTEGER data types, or the INT data types. These data types are used to store whole numbers. That is, numbers without anything after a decimal. Just like with the TEXT data type, INT is broken up into multiple data types that can be used. It is actually broken up into 5 different data types. TINYINT, SMALLINT, MEDIUMINT, INT, BIGINT. Now, the confusing part here is the naming. That's because the only thing we have to compare this naming to is the TEXT data types. But they don't follow a consistent naming convention. For example, MEDIUMTEXT is larger than TEXT, but MEDIUMINT is smaller than INT. Additionally, there are 5 data types for the INT data type group, and lastly the biggest INT data type is called BIGINT whereas the biggest TEXT data type is called LONGTEXT. These are used to store exact values. What that means is that if you store a number and use it, you expect it to maintain precision. There are data types that are used for estimated values which we are going to discuss in more detail in an upcoming video. For now, let's focus on INT data types. You can find the exact storage limits for each of these, but here is some info: TINYINT - 255 SMALLINT - 65535 MEDIUMINT - 16 Million INT - 4 Billion BIGINT - Stinkin' a lot (18446744073709551615) Now note, in this situation, we will have to label each one of these as UNSIGNED. An unsigned number does not allow for negatives, but allows higher positive numbers. You can look up the INT data types to get the exact ranges for signed and unsigned. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! www.patreon.com/calebcurry Subscribe to my newsletter: eepurl.com/-8qtH Donate!: bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: CalebCurry.com Facebook: www.facebook.com/CalebTheVideoMaker Google+: plus.google.com/+CalebTheVideoMaker2 Twitter: twitter.com/calebCurry Amazing Web Hosting - www.dreamhost.com/r.cgi?1487063 (The best web hosting for a cheap price!)
