The four main functions performed in database applications are created, retrieve, update, and delete (CRUD), it’s one of the most critical aspects of blockchain technology. Let’s talk about CRUD testing and why it’s important in the blockchain. 

1. CRUD definition

CRUD stands for creating, reading, updating, and deleting in computer programming. The four basic roles of persistent storage are as follows. Additionally, each acronym letter can refer to any function in a relational database application that is mapped to a typical HTTP method, SQL statement, or DDS action.

CRUD capabilities are present in most applications. CRUD is something every programmer has to deal with at some point in time. By the way, a CRUD application is an application that uses forms to retrieve and return data from a database.

CRUD testing and why it's important in blockchain

2. CRUD mechanism

Depending on the system requirements, different users may have different CRUD cycles. Customers can use CRUD to create accounts and access those accounts when they return to the website. The user can then make changes to his or her personal information or payment details. On the other hand, operations managers can build product records and then call them as needed or change line items.

CRUD processes are at the heart of most dynamic web pages in the Web 2.0 era. However, you should distinguish CRUD from HTTP action verbs. For example, if you want to create a new record, you should use “SIGN”. You will use “PUT” or “PATCH” to update the record. The “Erase” command will be used to delete a record. Users and administrators can edit, delete, create and browse online records using CRUD such as:

  • The procedure name should end with the CRUD operation’s implementation name. The prefix for user-defined stored procedures must not be the same as the prefix for other user-defined stored procedures.
  • If you put the table name after the prefix, the CRUD methods for the same table will be grouped.
  • After you have added CRUD procedures, you can edit the database schema by defining which database entity to use for CRUD operations.

3.  CRUD – pros & cons

Many programmers prefer CRUD over special SQL statements because of its speed. The execution plan for a stored procedure is stored in the SQL Server procedure cache and reused for all subsequent procedure calls.

When SQL Server executes an SQL statement, the relational engine checks the procedure cache to determine if an existing execution plan exists for that SQL statement and if so, it uses the plan to reduce the need for SQL statement optimization, parsing, and recompilation.

If no execution plan is found, SQL Server creates a new execution plan for the query. Furthermore, when the SQL statements are removed from the application code, all the SQL can be stored in the database, leaving only the stored procedure calls in the client application. Using stored procedures can help reduce database concatenation.

In addition, performing CRUD operations protects against SQL injection attacks. Since all SQL Statements use stored procedures instead of string concatenation to generate dynamic queries from user input, anything entered as a parameter is quoted.

4. The critical role of CRUD in blockchain?

CRUD is commonly used in database and database design cases. Without CRUD operations, software developers cannot accomplish anything. REST, a superset of CRUDs for HTTP resources, is used in building websites, for example.

On the other hand, the end user relies heavily on CRUD. It would be difficult to sign up for websites, create blogs, or bookmark without it. We can add or create new entries, search and update existing entries, and delete them in most of the applications we use.

CRUD has several advantages, including:

  • It simplifies security control by meeting multiple access criteria
  • It makes application design easier and more extensible by simplifying and facilitating it
  • When compared with special SQL statements, it performs better

Users can create, view, modify, and change data using CRUD functions, which are the database user interface. 

If you want to know more about crud, contact SmartOSC

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