Why does text column not have default value in MySQL?
If you try to create a TEXT column on a table, and give it a default value in MySQL, you get an error (on Windows at least). I cannot see any reason why a text column should not have a default value. No explanation is given by the MySQL documentation. It seems illogical to me (and somewhat frustrating, as I want a default value!).
How are text values represented in mysql table?
Each BLOB or TEXT value is represented internally by a separately allocated object. This is in contrast to all other data types, for which storage is allocated once per column when the table is opened. It seems like pre-filling these column types would lead to memory usage and performance penalties. Anybody know why this is not allowed?
When to use tiny text column in MySQL?
You should use TINYTEXT for the column that requires less than 255 characters, has inconsistent length, and does not require sorting such as the excerpt of a blog post and summary of an article. See the following example: In this example, we created a new table named articles that has a summary column with the data type is TINYTEXT.
How is MySQL useful for storing long form text?
Besides CHAR and VARCHAR character types, MySQL provides us with TEXT type that has more features which CHAR and VARCHAR cannot cover. The TEXT is useful for storing long-form text strings that can take from 1 byte to 4 GB. We often find the TEXT data type for storing article body in news sites, product description in e-commerce sites.
Why does MySQL V5 throw an error but Linux only raises a warning?
Windows MySQL v5 throws an error but Linux and other versions only raise a warning. This needs to be fixed. WTF? On MS Windows the “no DEFAULT” rule is an error, while on other platforms it is often a warning. While not a bug, it’s possible to get trapped by this if you write code on a lenient platform, and later run it on a strict platform: