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Is it okay to always leave the length field blank for Integers?


MySQL fixed-length and variable-length data typesIs there a difference in using INT(1) vs TINYINT(1) in MySQL?Best practices for SQL varchar column lengthWhen to use the different numeric data types - TINYINT / SMALLINT / MEDIUMINT / INT / BIGINT - MySQLMySQL - Setting Integer Lengthtinyint(size), varchar(size): “size” explainationIs there any difference between TINYINT(1) and INT(1)?Type vs Length/Values in MysqlMySQL - How to index this query?MySQL: Identical Values Not Identical






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1















I've been setting the length field in MySQL for as long as I remember and I just realized I don't know why am I doing it...



For example setting an INT type, I always set 11 as length INT(11) and TINYINT(1)(to store Enable/Disable options) , until just now I wanted to use MEDIUMINT and I didn't know what is the max length for this type so I wondered...



I know it's about ZEROFILL, for example INT(4) would display 5 as 0005, but I still have the following questions



My questions are:



  1. Is it okay to always leave the length blank for Integers? even for Unique keys etc

  2. Is there any downside in leaving the length blank?

  3. If it is not important and possibly not even good, then why are most people I've seen and the ones who taught me always put length for INT/MEDIUMINT etc?


P.S. I always use UNSIGNED never UNSIGNED ZEROFILL











share|improve this question






























    1















    I've been setting the length field in MySQL for as long as I remember and I just realized I don't know why am I doing it...



    For example setting an INT type, I always set 11 as length INT(11) and TINYINT(1)(to store Enable/Disable options) , until just now I wanted to use MEDIUMINT and I didn't know what is the max length for this type so I wondered...



    I know it's about ZEROFILL, for example INT(4) would display 5 as 0005, but I still have the following questions



    My questions are:



    1. Is it okay to always leave the length blank for Integers? even for Unique keys etc

    2. Is there any downside in leaving the length blank?

    3. If it is not important and possibly not even good, then why are most people I've seen and the ones who taught me always put length for INT/MEDIUMINT etc?


    P.S. I always use UNSIGNED never UNSIGNED ZEROFILL











    share|improve this question


























      1












      1








      1








      I've been setting the length field in MySQL for as long as I remember and I just realized I don't know why am I doing it...



      For example setting an INT type, I always set 11 as length INT(11) and TINYINT(1)(to store Enable/Disable options) , until just now I wanted to use MEDIUMINT and I didn't know what is the max length for this type so I wondered...



      I know it's about ZEROFILL, for example INT(4) would display 5 as 0005, but I still have the following questions



      My questions are:



      1. Is it okay to always leave the length blank for Integers? even for Unique keys etc

      2. Is there any downside in leaving the length blank?

      3. If it is not important and possibly not even good, then why are most people I've seen and the ones who taught me always put length for INT/MEDIUMINT etc?


      P.S. I always use UNSIGNED never UNSIGNED ZEROFILL











      share|improve this question
















      I've been setting the length field in MySQL for as long as I remember and I just realized I don't know why am I doing it...



      For example setting an INT type, I always set 11 as length INT(11) and TINYINT(1)(to store Enable/Disable options) , until just now I wanted to use MEDIUMINT and I didn't know what is the max length for this type so I wondered...



      I know it's about ZEROFILL, for example INT(4) would display 5 as 0005, but I still have the following questions



      My questions are:



      1. Is it okay to always leave the length blank for Integers? even for Unique keys etc

      2. Is there any downside in leaving the length blank?

      3. If it is not important and possibly not even good, then why are most people I've seen and the ones who taught me always put length for INT/MEDIUMINT etc?


      P.S. I always use UNSIGNED never UNSIGNED ZEROFILL








      mysql






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Mar 25 at 3:49







      J. Doe

















      asked Mar 25 at 3:17









      J. DoeJ. Doe

      57110




      57110






















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