In the Rails world, there’s the concept of migrations, scripts in which changes to the database are made in Ruby rather than a database-specific flavour of SQL. Your Ruby migration code ends up being converted into the DDL specific to your current database; this makes switching database platforms very easy. For every change you make … Read more
You won’t always be able to simply generate the migration to already have the code you want. You can create an empty migration and then populate it with the code you need. You can find information about how to accomplish different tasks in a migration here: http://api.rubyonrails.org/classes/ActiveRecord/Migration.html More specifically, you can see how to drop … Read more
Upgrade from Angular v6 to Angular v7 Version 7 of Angular has been released Official Angular blog link. Visit official angular update guide https://update.angular.io for detailed information. These steps will work for basic angular 6 apps using Angular Material. ng update @angular/cli ng update @angular/core ng update @angular/material Upgrade from Angular v5 to Angular v6 … Read more
Oracle does not supply an out-of-the-box unload utility. Keep in mind without comprehensive info about your environment (oracle version? server platform? how much data? what datatypes?) everything here is YMMV and you would want to give it a go on your system for performance and timing. My points 1-3 are just generic data movement ideas. … Read more
Specify a smaller length for your e-mail: $table->string(’email’, 250); Which is the default, actually: $table->string(’email’); And you should be good. For Laravel 5.4 you can find a solution in this Laravel 5.4: Specified key was too long error, Laravel News post: As outlined in the Migrations guide to fix this all you have to do … Read more
I just ran into this and found that changing this in the .env file from 127.0.0.1 to localhost fixed it. DB_HOST=localhost
The best solution would be to fix the javadoc errors. If for some reason that is not possible (ie: auto generated source code) then you can disable this check. DocLint is a new feature in Java 8, which is summarized as: Provide a means to detect errors in Javadoc comments early in the development cycle … Read more
S1 with S2 it will overkill. Both frameworks are complicated, so the maintenance costs increase twice or more time. So, the strategy is to migrate completely to S2. Both frameworks are implemented MVC pattern. Divide the application on three parts that should migrate separately: Model, Controller, and View. The order is not important, but logically … Read more
rename_column :table, :old_column, :new_column You’ll probably want to create a separate migration to do this. (Rename FixColumnName as you will.): script/generate migration FixColumnName # creates db/migrate/xxxxxxxxxx_fix_column_name.rb Then edit the migration to do your will: # db/migrate/xxxxxxxxxx_fix_column_name.rb class FixColumnName < ActiveRecord::Migration def self.up rename_column :table_name, :old_column, :new_column end def self.down # rename back if you need … Read more