A foreign key is a column or set of columns in a table that refers to the primary key of another table. It is used to establish a relationship between two tables.When we study databases, one important idea is how ...Read more
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A view is a virtual table that is created based on the result of a query, while a table is a physical object that stores data in a database. Views are used to provide a customized view of the data ...Read more
In Java, performing CRUD (Create, Read, Update, Delete) operations in an MVC (Model-View-Controller) architecture typically involves creating separate components for each operation. Below are the keywords and titles associated with each operation:Create (C):Keyword: INSERT, CREATE Title: Create a new record or ...Read more
To rename a local Git branch, follow these steps: 1. Switch to the branch you want to rename: git checkout <old-branch-name> 2. Rename the branch using the git branch command: git branch -m <new-branch-name> Alternatively, you can use the longer form of the command: git branch ...Read more
If you accidentally added a file or files using git add that you didn’t intend to include in your commit, you can undo the add operation by using the following command: git reset <file> Replace <file> with the name of the file ...Read more