Friday, June 22, 2018

Mysql text data type

Besides CHAR and VARCHAR character types ,. These correspond to the four BLOB types and have the same maximum lengths and storage requirements. Data Type Storage Requirements”. MEDIUMTEXT: 1772- MB.


It also supports the approximate numeric data types (FLOAT, REAL, and DOUBLE PRECISION).

TEXT : 65characters - KB. The keyword INT is a synonym for INTEGER, and the keywords DEC and FIXED are synonyms for DECIMAL. This chapter provides an overview of these data types , a more detailed description of the properties of the types in each category, and a summary of the data type storage requirements.


This section describes how these types work and how to use them in your queries. For string type storage requirements, see Section 11. User comments in this section are, as the name implies, provided by MySQL users.


Maximum length for MySQL type text - Stack.

Table data might be compresse either for a column or an entire row, complicating the calculation of storage requirements for a table or column. Despite differences in storage layout on disk, the internal MySQL APIs that communicate and exchange information about table rows use a consistent data structure that applies across all storage engines. Moreover, it also supports the BIT data type that can accept bit values. A numeric type can either be signed or unsigned. String data types are normally used to store names, addresses, descriptions or any value that contains letters and numbers including binary data , like image or audio files.


MySQL or MariaDB has several data types for handling text -based characters. There are several data types for handling smaller strings such as CHAR and VARCHAR data types. For larger text -based strings there are BLOB based data types such as TEXT. It allows different types of data to be used in different ways. The main types of data are character, numerical, and date and time.


MySQL stores information in different formats. When you create a database, you tell MySQL what kind of data to expect in a particular column by using the MySQL names for data types. A data type specifies a particular type of data , such as integer, floating-point, Boolean etc.


A data type also specifies the possible values for that type , the operations that can be performed on that type and the way the values of that type are stored. Each data type in MySQL can be determined by the following characteristics: The kind of values it represents. MySQL provides more data types other than just numeric or string.

The space that takes up and whether the values is a fixed-length or variable length. It seems mysql will try to intelligently convert the data when its datatype changes. Refer to the following table.


This data type enables us to mention the date and time. Unfortunately MySQL and MS SQL Server use slightly different data types, so you will have to do some mapping to get the correct data after the migration. This chapter describes the most important data types in MySQL and their equivalents or recommended migration targets in SQL Server. MySQL also has several variants on the text types that allow for storing binary data.


Such types can be used for storing files or encrypted data.

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