Codeigniter 4 CRUD In this tutorial I am going to show how to build CRUD (Create Read Update Delete) application using Codeigniter 4 and MySQL database using basic AJAX (Asynchronous JavaScript and XML) technique. I won’t use AJAX technique for all four operations, i.e., fetching (Read), saving (Create), updating and deleting. Out of these four…

Composite Primary Key Composite primary key is a combination of two or more columns in a table. So instead of a single column to be a primary key, more than one column or field is made to be a primary key to uniquely identify the rows in a given table. Let’s say you have created…

JSF 2 AJAX In this tutorial I am going to show you how to use AJAX (Asynchronous JavaScript And XML) technique in JSF (Java Server Faces) based applications. AJAX is generally used for updating or refreshing a small part of the page because, you may not need to refresh the whole page. Here in this…

Cucumber Cucumber is a BDD (behavior driven development) framework for running automated acceptance or integration test cases. Cucumber framework is written in Ruby language, but it is also available in other programming language. Cucumber uses Gherkin parser but the implementation is done using the target language. Cucumber allows the execution of feature documentation written in…

Empty File In this example I will show you how to create empty files for files in Unix or Linux based systems. You may need to create empty files for a list of corresponding files in a directory or folder. To create an empty file generally you may use touch command in Unix shell terminal….

Merge/Unmerge Cells In this example I am going to show you how to merge and unmerge cells in excel sheet using Python script. You can merge two or more columns in a single row or multiple rows in excel file. For merging cells you need to specify the range of rows and columns in the…

Images in Excel In this example I am going to show you how to insert images in excel file using Python script. You may have a requirement that needs to insert one or more images into an excel file. Either to represent something using the images in the excel file or you may need both…

HTML Table HTML table is mainly used to display data in tabular format in rows and columns. Each row contains one or more columns to display data. Each row is indicated by <tr/> tag, whereas each column is indicated by <td/> tag. The HTML table is indicated by <table/> tag. The HTML table header is indicated by <thead/> and body is indicated by <tbody/> tag….

HTML Table HTML table is generally used to display data in tabular format in rows and columns. Each row contains one or more columns to display data. Each row is indicated by <tr/> tag, whereas each column is indicated by <td/> tag. The HTML table is indicated by <table/> tag. The HTML table header is…

Borders in Excel File In this example I am going to show you how to create borders in excel file. I will create two sheets in the same excel file. In one sheet I will show how to create borders around rows and columns without writing any text. In the other sheet I will show…

Git Password Update Here I am going to show you how to update password in Git client. You may need to update password in your Git client while accessing Git repository for several reasons. For example, your organization allow access to different systems using SSO (Single Sign On). So while you update password upon expiration,…

Manifest File A manifest file contains metadata for a group of accompanying files which are part of coherent unit. For example, the files of a computer program may have a manifest describing the name, version number, license and the constituent files of the program. Manifests provide consistency and reproducibility, and can help you automate deploying…