PHP Blog
-
5 min readIn Laravel, you can load nested relationships using eager loading. Eager loading allows you to load multiple relationships at once when querying your database. To load nested relationships, you can use the with method when querying your models.For example, if you have a User model that has a posts relationship, and each Post has a comments relationship, you can load both relationships like this: $user = User::with('posts.
-
4 min readTo convert comma separated values to rows in Oracle, you can use the SQL function "REGEXP_SUBSTR" along with a recursive SQL query. First, use the function to extract individual values from the comma-separated list. Then, use a recursive query to iterate through each value and insert it into a new row in a temporary table. This process may involve creating a separate table, using a loop to iterate through the values, and inserting them into rows accordingly.
-
4 min readTo include bootstrap-vue in Laravel, you can first install it using npm by running the command npm install vue bootstrap-vue bootstrap. Then you can import BootstrapVue and BootstrapVueIcons in your resources/js/app.js file. Next, you will need to import the Bootstrap-Vue css in your resources/sass/app.scss file. After that, you can use the components from BootstrapVue in your Vue components or templates. Finally, don't forget to run npm run dev or npm run watch to compile your assets.
-
6 min readTo combine and count two columns in Oracle, you can use the CONCAT function to combine the values from the two columns into a single column. You can also use the COUNT function to count the number of rows that meet certain criteria, such as having the same values in both columns. By using a combination of these functions, you can effectively combine and count the values from two columns in Oracle.
-
3 min readTo check if data exists in Laravel, you can use the exists method on a model query builder. This method returns a boolean value indicating whether any records match the query criteria.For example, you can check if a user with a specific email address exists in the users table like this: $email = 'example@example.
-
4 min readIn Oracle, you can split a value using the SUBSTR function. This function allows you to extract a portion of a string based on a specified starting position and length. For example, if you have a string 'HelloWorld' and you want to extract the first 5 characters, you would use the SUBSTR function like this:SELECT SUBSTR('HelloWorld', 1, 5) FROM dual;This SQL query would return 'Hello', which is the first 5 characters of the original string.
-
4 min readTo show custom login validation in Laravel, you can create a custom validation rule by extending the Validator facade and adding the custom rule in the boot() method of the AppServiceProvider class. You can then use this custom rule in your login validation logic in the controller by adding it to the validation rules array. If the validation fails, you can display the custom error message to the user.
-
5 min readTo extend Laravel query builder, you can create a custom query builder extension by creating a new class that extends the base query builder class provided by Laravel. This custom query builder class can contain additional custom methods that you want to add to the query builder.You can then use this custom query builder in your application by using it as a replacement for the default query builder provided by Laravel.
-
4 min readTo call a scheduler in Oracle from Java, you can use the OracleScheduler class from the oracle.jdbc.driver package. First, you need to establish a connection to the database using the DriverManager class and the appropriate JDBC URL, username, and password. Then, you can create an instance of the OracleScheduler class and use its methods to interact with the scheduler. This includes creating, modifying, and deleting jobs, job classes, and schedules.
-
7 min readWhen using Laravel Models, it is important to understand their purpose and how to properly utilize them in your application. Models in Laravel represent the data in your database and define the relationship between data.To properly use Laravel Models, you should first create a model file using the artisan command php artisan make:model ModelName. This will generate a new model file in the app/Models directory.
-
4 min readTo remove non-numeric values from a SELECT query in Oracle, you can use regular expressions in combination with the REGEXP_LIKE function. By specifying a regular expression pattern that matches only numeric values, you can filter out any non-numeric characters from the results of your query.