Mastering data storage is pivotal, no matter the tool you use. The most popular options when it comes to database server tools are MS SQL, Azure SQL Database, IBM DB2, PostgreSQL, and AWS Cloud. All these offer robust solutions for storing, managing, and retrieving data. Here’s a comprehensive guide on how to store data in…
Oracle Database is a widely-used relational database management system. Understanding the database version is crucial for users and administrators, as it helps understand functionality, assess upgrades, and ensure compatibility. This article explores 3 most used methods to determine the version of Oracle Database. Using SQL*Plus or SQLcl Firstly, we have to open our terminal or…
A size limit of only 2GB and maximum support for 255 concurrent users are enough reasons for anyone to import their Access database to an SQL server. Once you upgrade to an SQL server, you will get support for larger amounts of data, more concurrent users, and an overall better capacity. And the good news…
DB2 SQL Error SQLCODE 407 SQLSTATE 23502 means a column object specified as NOT NULL is receiving a NULL value. It usually occurs when trying to perform an INSERT, UPDATE, or SET operation on an object. However, the ALTER statement can sometimes trigger the same issue. What is SQLCODE =- 407 in DB2? The SQLCODE…
Database encryption in SQL Server refers to encrypting data stored in a SQL Server database to protect it from unauthorized access. Encryption gives an extra layer of assurance by changing over information into an unreadable organize, rendering it futile to unauthorized people even if they pick up and get to the database. In this article, we’ll dig into…
DB2 SQL Error SQLCODE 803 SQLSTATE 23505 means that an Insert or Update operation is violating a uniqueness constraint that is already in place. It occurs either after performing Load with the identity_override modifier or when the table gets altered to add an Identity clause with existing data. What Does SQLCODE = – 803 Mean?…
Are your MySQL replicas running well? You might not even know if they aren’t. One of the scariest things about MySQL replication is that it can drift out of sync with the master “silently”. No errors, no warnings.In this article, we have explained bulletproofing MySQL replication with checksums. Let’s check them out! What Is MySQL…
There is no need to mention that speed is one of the most sought-after attributes in any database system. Optimizing MySQL for high speed is essential to ensure responsive applications and efficient data processing. There are basically two best ways to speed up UNION in MySQL – using UNION ALL and using push-down conditions. In…
AWS SQL and Azure SQL server are excellent cloud services, with more than 99.9% availability, competitive pay-as-you-go pricing strategies, and more. Yet, they have certain limitations in scalability, integration, and security. So, choosing one can be tough if you’re just starting out. A comparison of SQL server on AWS vs Azure When comparing SQL servers…
When we delete or change a record from the parent table, we encounter a deadlock. It causes locks to be placed on the child’s table to prevent orphan records. As a result, we must first alter data in the child table. When the SQL Server executes a query in parallel mode, multiple threads are created….
