Mysql field type summary --- field type summary table _ MySQL

Source: Internet
Author: User
Mysql field type summary --- field type summary table original Web site: http://kimbriggs.com/computers/computer-notes/mysql-notes/mysql-data-types-50.file


Type {storage} Name Range Attributes Default
Numeric
{1 byte}
TINYINT [(M)] -From 128 TO 127
[0 to 255 if UNSIGNED]
AUTO_INCREMENT
UNSIGNED, ZEROFILL,
SERIAL DEFAULT VALUE
NULL
[0 if not null]
Numeric
{2 bytes}
SMALLINT [(M)] -From 32,768 to 32,767
[1 to 65,535]
AUTO_INCREMENT,
UNSIGNED, ZEROFILL,
SERIAL DEFAULT VALUE
NULL
[0 if not null]
Numeric
{3 bytes}
MEDIUMINT [(M)] -From 8,388,608 to 8,388,607
[1 to 16,777,215]
AUTO_INCREMENT,
UNSIGNED, ZEROFILL,
SERIAL DEFAULT VALUE
NULL
[0 if not null]
Numeric
{4 bytes}
INT [(M)] -/+ 2.147E + 9
[0 to 4.294E + 9]
AUTO_INCREMENT,
UNSIGNED, ZEROFILL,
SERIAL DEFAULT VALUE
NULL
[0 if not null]
Numeric
{8 bytes}
BIGINT [(M)] -/+ 9.223E + 18
[0 to 18.45E + 18]
AUTO_INCREMENT,
UNSIGNED, ZEROFILL,
SERIAL DEFAULT VALUE
NULL
[0 if not null]
Numeric
{4 or 8}
FLOAT (p) P = 0-24 --> "FLOAT"
P = 25-53 --> "DOUBLE"
UNSIGNED, ZEROFILL NULL
[0 if not null]
Numeric
{4 bytes}
FLOAT [(M, D)] Min = +/-1.175E-38
Max = +/-3.403E + 38
UNSIGNED, ZEROFILL NULL
[0 if not null]
Numeric
{8 bytes}
DOUBLE [(M, D)] Min = +/-2.225E-308
Max = +/-1.798E + 308
UNSIGNED, ZEROFILL NULL
[0 if not null]
Numeric
{M + 2}
DECIMAL [(M, [D])]
Stored as string
Max Range = DOUBLE range
Fixed point vs. DOUBLE float
UNSIGNED, ZEROFILL NULL
[0 if not null]
Bit
{8 bytes}
BIT [(M)] Binary. Display by [add zero or converting with BIN ()]. M = 1-64 Prior to 5.03
TINYINT (1) Synonym
NULL
[0 if not null]
String
{M char's}
CHAR [(M)] M = 0-255 Characters, FIXED.
Right padded with spaces.
BINARY, CHARACTER SET NULL
["" If not null]
String
{M char 'S1}
VARCHAR (M) M = 0-65,535 Characters
MB = 0-255
BINARY, CHARACTER SET NULL
["" If not null]
String
{# Char 'S1}
TINYTEXT2 0-255 Characters BINARY, CHARACTER SET NULL
["" If not null]
String
{# Char 'S1}
TEXT2 0-65,535 Char's BINARY, CHARACTER SET NULL
["" If not null]
String
{# Char 'S1}
MEDIUMTEXT2 0-16,777,215 Char's BINARY, CHARACTER SET NULL
["" If not null]
String
{# Char 'S1}
LONGTEXT2 0-4,294,967,295 Char's BINARY, CHARACTER SET NULL
["" If not null]
String
{M bytes}
BINARY [(M)] M = 0-255 bytes, FIXED. Global Only
(Case sensitive)
NULL
["" If not null]
String
{M bytes}
VARBINARY (M) 0-65,535 bytes
MB = 0-255
Global Only
(Case sensitive)
NULL
["" If not null]
String
{# Bytes1}
TINYBLOB 0-255 bytes Global Only
(Case sensitive)
NULL
["" If not null]
String
{# Bytes1}
BLOB 0-65,535 bytes Global Only
(Case sensitive)
NULL
["" If not null]
String
{# Bytes1}
MEDIUMBLOB 0-16,777,215 bytes Global Only
(Case sensitive)
NULL
["" If not null]
String
{# Bytes1}
LONGBLOB 0-4,294,967,295 bytes Global Only
(Case sensitive)
NULL
["" If not null]
String
{1-2 bytes}
ENUM2
("A1", "A2 ",...)
Column is exactly 1 of 1-65,535 values CHARACTER SET NULL [1st value if not null]
String
{1-8 bytes}
SET2
("A1", "A2 ",...)
Column is 0 or more values in list of 1-64 members CHARACTER SET NULL
["" If not null]
Date & Time
{3 bytes}
DATE 1000-01-01 "-" 9999-12-31" Global Only
YYYY-MM-DD)
NULL
["0000-00-00" if not null]
Date & Time
{8 bytes}
DATETIME "1000-01-01 00:00:00 "-
9999-12-31 23:59:59"
Global Only
YYYY-MM-DD hh: mm: ss)
NULL ["0000-00-00 00:00:00"
If not null]
Date & Time
{3 bytes}
TIME "-838: 59: 59"-"838: 59: 59" Global Only
(Hh: mm: ss)
NULL
["00:00:00" if not null]
Date & Time
{4 bytes}
TIMESTAMP 19700101000000-
2037 +
Global Only
(YYYYMMDDhhmmss)
Current Date & Time
Date & Time
{1 bytes}
YEAR 1900-2155 Global Only
(YYYY)
NULL
["0000" if not null]

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