Should I use VARCHAR or TEXT MySQL?
Some Differences Between VARCHAR and TEXT The VAR in VARCHAR means that you can set the max size to anything between 1 and 65,535. TEXT fields have a fixed max size of 65,535 characters. A VARCHAR can be part of an index whereas a TEXT field requires you to specify a prefix length, which can be part of an index.
What is difference between CHAR VARCHAR and TEXT in MySQL?
CHAR items, which are fixed length, are the fastest to store and retrieve but can waste storage space. VARCHAR, a variable-length string, can be slower to store and retrieve but does not waste storage space. TEXT is a character BLOB that requires more storage space and I/O than the other two.
What is TEXT data type in MySQL?
TEXT is the family of column type intended as high-capacity character storage. The actual TEXT column type is of four types-TINYTEXT, TEXT, MEDIUMTEXT and LONGTEXT. The smallest TEXT type, TINYTEXT shares the same character length as VARCHAR. TEXT values are treated as character strings.
Is TEXT slower than VARCHAR?
Long answer: There is essentially no difference (in MySQL) between VARCHAR(3000) (or any other large limit) and TEXT .
What is text data type?
The TEXT data type stores any kind of text data. It can contain both single-byte and multibyte characters that the locale supports. The term simple large object refers to an instance of a TEXT or BYTE data type. No more than 195 columns of the same table can be declared as TEXT data types. …
Why is varchar 255?
255 is used because it’s the largest number of characters that can be counted with an 8-bit number. When used this way, VarChar only uses the number of bytes + 1 to store your text, so you might as well set it to 255, unless you want a hard limit (like 50) on the number of characters in the field.
What is TEXT data type?
What does VARCHAR 255 mean?
The length can be specified as a value from 0 to 65,535. The effective maximum length of a VARCHAR is subject to the maximum row size (65,535 bytes, which is shared among all columns) and the character set used. VARCHAR(255) stores 255 characters, which may be more than 255 bytes.
What is Type blob?
A BLOB (binary large object) is a varying-length binary string that can be up to 2,147,483,647 characters long. Like other binary types, BLOB strings are not associated with a code page. In addition, BLOB strings do not hold character data.
What is long text data type?
Long Text (formerly known as “Memo” Large amounts of alphanumeric data: sentences and paragraphs. See The Memo data type is now called “Long Text” for more information on the Long Text details. Up to about 1 gigabyte (GB), but controls to display a long text are limited to the first 64,000 characters. Number.
Why is VARCHAR 255?
Is VARCHAR a string?
VARCHAR is a variable length string data type, so it holds only the characters you assign to it. VARCHAR takes up 1 byte per character, + 2 bytes to hold length information.