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schema builder laravel migrations unique on two columns. class mymodel extends migration public function up schema create storage trackers function schema builder laravel migrations unique on two columns ask question asked 6 years the second param is to manually set the name of the unique index.

database migrations laravel the php framework for web. each migration file name contains a timestamp which allows laravel to determine the order of the migrations the table and create options may also be used to indicate the name of the table and whether the migration will be creating a new table. schema builder laravel the php framework for web artisans. to drop an index you must specify the index s name laravel assigns a reasonable name to the indexes by default simply concatenate the table name the names of the column in the index and the index type here are some examples. php laravel migration unique key is too long even if. i am trying to migrate a users table in laravel when i run my migration i get this error illuminate laravel migration unique key is too long even character set and collation collation server utf8mb4 unicode ci character set server utf8mb4 utf8mb4 long key index innodb large prefix 1 innodb file format barracuda. migration index too long choose the name laravel daily. migration index too long choose the name yourself december 29 i had a problem of auto assigning a name to unique index which appeared to be too long what to do with it a specific example a leta s say you want to set up a unique index on four columns 5 years with laravel. laravel migrations w3schools tutorialspoint w3adda. each of the migration file contains distinct set of changes to the associated database in laravel at any point of time you can switch or migrate to any specific version of the data model artisan migration command laravel comes with set of migration related commands that can be run from artisan command line interface migrate install.

proposal add schema hasindex method issue 3253. 15 1 2014 i m currently facing a problem where adding a unique composite index in a later migration removes an index on one of the attributes in my new index which in turn leads to an exception when rolling back because an index is needed for the fkey to work my solution to manually add the old index before deleting the unique index. laravel migration unique key is too long even if. update 1 as of laravel 5 4 those changes are no more needed laravel 5 4 uses the utf8mb4 character set by default which includes support for storing a emojisa in the database if you are upgrading your application from laravel 5 3 you are not required to switch to this character set. laravel database migrations migration function create. laravel database migrations the laravel database migrations is used to control on your database and allowing a user to modify and create the database for example that specifies a columna s values should be unique to create the index laravel drop table using migration a. 5 4 sql error when migrating tables issue 17508. 24 1 2017 according to rbkkm to fix this issue you can decrease the index rather than the field size this lets you use the full 255 characters at the expense of index length rather than getting the full index length at the expense of the varchar field length what rbkkm seems to be suggesting is this.