We are starting with a series of PL/SQL tutorials for our readers. In this article, we will discuss the topics like an overview of PL SQL comprising its definition, its features, some of the advantages of using PL/SQL, and differences between PL/SQL and SQL. We will also explore the b...
Oracle can do a lot of things that MySQL cannot do. I don't need most of them. Oracle has lots of Index types that MySQL does not have; MySQL's BTrees are good enough in 99% of the cases. Etc. Enjoy the comparison -- even write a blog on what you find. Newbies from Oracle ...
Types of indexes: Clustered: It sorts and stores the data row of the table or view in order based on the index key...
Today, it's commonly accepted that NoSQL stands for "not only SQL."What are the types of NoSQL databases? There are four types of NoSQL database systems. Each uses a different type of data model, resulting in significant differences between each NoSQL type, noted as follows: This ...
Different SQL Server Data Types Data Types SQL Server supports a broad category of SQL standard data types. Based on the storage characteristics, some data types are designated as belonging to the following groups: Large Value Data Types: varchar(max), nvarchar(max) Large Object Data Types: tex...
SQL Server built-in functions are either deterministic or nondeterministic. Functions are deterministic when they always return the same result anytime they're called by using a specific set of input values. Functions are nondeterministic when they could return different results every time they're ...
“atomicity, consistency, isolation, and durability,” the four properties that ensure database transactions are processed dependably and accurately. With ACID transactions, MySQL can guarantee that all data modifications are made in a consistent and reliable way, even in the event of a system ...
Types of SQL Triggers There are two types of triggers: Row-level triggers Statement-level triggers Time to dig into both! Row-Level Triggers A row-level trigger is executed once for each row affected by the triggering event, which is typically an INSERT, UPDATE, or DELETE statement. Fo...
SQL Server 2022 (16.x) builds on previous releases to grow SQL Server as a platform that gives you choices of development languages, data types, on-premises or cloud environments, and operating systems.The following video introduces SQL Server 2022 (16.x)....
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