mysql database text field length

mysql database text field length Per the MySQL docs there are four TEXT types TINYTEXT TEXT MEDIUMTEXT LONGTEXT What is the maximum length that I can store in a column of each data type assuming the character encoding is UTF 8

I m designing a database table and asking myself this question How long should the firstname field be Does anyone have a list of reasonable lengths for the most common fields such as first name last name and email address For definitions of character string columns CHAR VARCHAR and the TEXT types MySQL interprets length specifications in character units For definitions of binary string columns BINARY VARBINARY and the BLOB types MySQL interprets length specifications in byte units

mysql database text field length

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This tutorial shows you how to use various MySQL TEXT data type such as TINYTEXT TEXT MEDIUMTEXT and LONGTEXT to store text data Explore MySQL TEXT data types from TINYTEXT to LONGTEXT and master storage size limits and application tips for optimized database structure

MySQL supports 4 TEXT field types TINYTEXT TEXT MEDIUMTEXT and LONGTEXT and this post looks at the maximum length of each of these field types MyISAM tables in MySQL have a maximum size of a row of 65 535 bytes so all the data in a row must fit within that limit The four TEXT types are TINYTEXT TEXT MEDIUMTEXT and LONGTEXT These correspond to the four BLOB types and have the same maximum lengths and storage requirements See Section 13 7 Data Type Storage Requirements BLOB values are treated as binary strings byte strings

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Learn how to optimize your MySQL database design by understanding the max lengths of TEXT data types from TINYTEXT to LONGTEXT for efficient storage Use LENGTH for checking length in bytes SELECT str FROM sometable WHERE LENGTH str 5 Or CHAR LENGTH for checking length in number of characters useful for multi byte strings SELECT str FROM sometable WHERE CHAR LENGTH str 5

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