What is the size of column of int 11 in mysql in bytes

Question

What is the size of column of int 11  in mysql in bytes   And Maximum value that can be stored in this columns

User · Answer

A good explanation for this can be found here

To summarize : The number N in int(N) is often confused by the maximum size allowed for the column, as it does in the case of varchar(N).

But this is not the case with Integer data types- the number N in the parentheses is not the maximum size for the column, but simply a parameter to tell MySQL what width to display the column at when the table's data is being viewed via the MySQL console (when you're using the ZEROFILL attribute).

The number in brackets will tell MySQL how many zeros to pad incoming integers with. For example: If you're using ZEROFILL on a column that is set to INT(5) and the number 78 is inserted, MySQL will pad that value with zeros until the number satisfies the number in brackets. i.e. 78 will become 00078 and 127 will become 00127. To sum it up: The number in brackets is used for display purposes.
In a way, the number in brackets is kind of usless unless you're using the ZEROFILL attribute.

So the size for the int would remain same i.e., -2147483648 to 2147483648 for signed and 0 to 4294967295 for unsigned (~ 2.15 billions and 4.2 billions, which is one of the reasons why developers remain unaware of the story behind the Number N in parentheses, as it hardly affects the database unless it contains over 2 billions of rows), and in terms of bytes it would be 4 bytes.

User · Answer

I think max value of int 11  is 4294967295

User · Answer

In MySQL integer int 11  has size is 4 bytes which equals 32 bit   Signed value is   -2  32-1  to 0 to 2  32-1 -1                  -2147483648 to 0 to 2147483647  Unsigned values is   0 to 2 32-1                      0 to 4294967295

User · Answer

Though this answer is unlikely to be seen  I think the following clarification is worth making     the  n  behind an integer data type in MySQL is specifying the display width the display width does NOT limit the length of the number returned from a query the display width DOES limit the number of zeroes filled for a zero filled column so the total number matches the display width  so long as the actual number does not exceed the display width  in which case the number is shown as is  the display width is also meant as a useful tool for developers to know what length the value should be padded to   A BIT OF DETAIL the display width is  apparently  intended to provide some metadata about how many zeros to display in a zero filled number  It does NOT actually limit the length of a number returned from a query if that number goes above the display width specified  To know what length width is actually allowed for an integer data type in MySQL see the list  amp  link   types  TINYINT  SMALLINT  MEDIUMINT  INT  BIGINT   So having said the above  you can expect the display width to have no affect on the results from a standard query  unless the columns are specified as ZEROFILL columns  OR  in the case the data is being pulled into an application  amp  that application is collecting the display width to use for some other sort of padding   Primary Reference  https   blogs oracle com jsmyth entry what does the 11 mean

User · Answer

What is the size of column of int 11  in mysql in bytes       11  - this attribute of int data type has nothing to do with size of column  It is just the display width of the integer data type  From 11 1 4 5  Numeric Type Attributes        MySQL supports an extension for optionally specifying the display   width of integer data types in parentheses following the base keyword   for the type  For example  INT 4  specifies an INT with a display   width of four digits

User · Answer

4294967295 is the answer  because int 11  shows maximum of 11 digits IMO

User · Answer

An INT will always be 4 bytes no matter what length is specified    TINYINT   1 byte  8 bit  SMALLINT   2 bytes  16 bit  MEDIUMINT   3 bytes  24 bit  INT   4 bytes  32 bit  BIGINT   8 bytes  64 bit     The length just specifies how many characters to pad when selecting data with the mysql command line client  12345 stored as int 3  will still show as 12345  but if it was stored as int 10  it would still display as 12345  but you would have the option to pad the first five digits  For example  if you added ZEROFILL it would display as 0000012345       and the maximum value will be 2147483647  Signed  or 4294967295  Unsigned

User · Answer

According to here  int 11  will take 4 bytes of space that is 32 bits of space with  2  31    2147483648 max value and -2147483648min value  One bit is for sign

User · Answer

INT x  will make difference only in term of display  that is to show  the number in x digits  and not restricted to 11  You pair it using ZEROFILL  which will prepend the zeros until it matches your length  So  for any number of x in INT x   if the stored value has less digits than x  ZEROFILL will prepend zeros    INT 5  ZEROFILL with the stored value of 32 will show 00032 INT 5  with the stored value of 32 will show 32 INT with the stored value of 32 will show 32   if the stored value has more digits than x  it will be shown as it is    INT 3  ZEROFILL with the stored value of 250000 will show 250000 INT 3  with the stored value of 250000 will show 250000 INT with the stored value of 250000 will show 250000  The actual value stored in database is not affected  the size is still the same  and any calculation will behave normally  This also applies to BIGINT  MEDIUMINT  SMALLINT  and TINYINT

User · Answer

according to this book      MySQL lets you specify a    width    for integer types  such as INT 11     This is meaningless for most applications  it does not restrict the   legal range of values  but simply specifies the number of characters   MySQL   s interactive tools will reserve for display purposes  For   storage and computational purposes  INT 1  is identical to INT 20

User · Answer

As others have said  the minumum maximum values the column can store and how much storage it takes in bytes is only defined by the type  not the length    A lot of these answers are saying that the  11  part only affects the display width which isn t exactly true  but mostly   A definition of int 2  with no zerofill specified will    still accept a value of 100 still display a value of 100 when output  not 0 or 00  the display width will be the width of the largest value being output from the select query    The only thing the  2  will do is if zerofill is also specified    a value of 1 will be shown 01   When displaying values  the column will always have a width of the maximum possible value the column could take which is 10 digits for an integer  instead of the miniumum width required to display the largest value that column needs to show for in that specific select query  which could be much smaller  The column can still take  and show a value exceeding the length  but these values will not be prefixed with 0s    The best way to see all the nuances is to run   CREATE TABLE  mytable         id  int 11  NOT NULL AUTO INCREMENT       int1  int 10  NOT NULL       int2  int 3  NOT NULL       zf1  int 10  ZEROFILL NOT NULL       zf2  int 3  ZEROFILL NOT NULL      PRIMARY KEY   id     ENGINE InnoDB DEFAULT CHARSET utf8   INSERT INTO  mytable     int1    int2    zf1    zf2    VALUES  10000  10000  10000  10000    100  100  100  100    select   from mytable    which will output    ---- ------- ------- ------------ -------    id   int1    int2    zf1          zf2      ---- ------- ------- ------------ -------     1   10000   10000   0000010000   10000      2     100     100   0000000100     100    ---- ------- ------- ------------ -------    This answer is tested against MySQL 5 7 12 for Linux and may or may not vary for other implementations

[mysql] What is the size of column of int(11) in mysql in bytes?

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