Which is not a valid data type in MySQL?
MySQL does not have the built-in BOOLEAN or BOOL data type. To represent boolean values, MySQL uses the smallest integer type which is TINYINT(1) .
What are different data types uses in MySQL explain all of them?
MySQL supports all standard SQL numeric data types which include INTEGER, SMALLINT, DECIMAL, and NUMERIC. It also supports the approximate numeric data types (FLOAT, REAL, and DOUBLE PRECISION). The keyword INT is a synonym for INTEGER, and the keywords DEC and FIXED are synonyms for DECIMAL.
What is the full form of MySQL?
www.mysql.com. MySQL (/ˌmaɪˌɛsˌkjuːˈɛl/) is an open-source relational database management system (RDBMS). Its name is a combination of “My”, the name of co-founder Michael Widenius’s daughter, and “SQL”, the abbreviation for Structured Query Language.
What is a double in MySQL?
DOUBLE is a double precision floating point number. MySQL uses eight bytes to store a DOUBLE value. MySQL treats DOUBLE as a synonym for DOUBLE PRECISION (a non-standard extension). In addition, MySQL also treats REAL as a synonym for DOUBLE PRECISION , unless the REAL_AS_FLOAT SQL mode is enabled.
What are the different types of data in MySQL?
MySQL supports a number of SQL data types in several categories: numeric types, date and time types, string (character and byte) types, spatial types, and the JSON data type.
What are the date and time data types in MySQL?
MySQL provides types for date and time as well as the combination of date and time. In addition, MySQL supports timestamp data type for tracking the changes in a row of a table. If you just want to store the year without date and month, you can use the YEAR data type. The following table illustrates the MySQL date and time data types:
What are the temporal data types in MySQL?
The date and time data types for representing temporal values are DATE , TIME , DATETIME , TIMESTAMP, and YEAR. Each temporal type has a range of valid values, as well as a “zero” value that may be used when you specify an invalid value that MySQL cannot represent.
Which is the smallest data type in MySQL?
Numeric Data Types Data type Description SMALLINT ( size) A small integer. Signed range is from -3 MEDIUMINT ( size) A medium integer. Signed range is from – INT ( size) A medium integer. Signed range is from – INTEGER ( size) Equal to INT (size)
