ESB ProfessionalshutterstockSQL comments are essential for making code more readable and for temporarily disabling certain parts of the code. In this dedicated article, we’ll explore the different types of SQL comments, how to use them, and also provide you with some practical examples to illustrate their…
ToriashutterstockWhen you’re considering certain values of a database, SQL BETWEEN offers some good options. You can use the operator to specify a range of values. It’s used with a WHERE condition. Find out how SQL BETWEEN works in practice using examples.
BEST-BACKGROUNDSShutterstockCopying data between tables in SQL can be rather time consuming. Luckily SQL SELECT INTO speeds up that process for you. The command copies records, rows and columns from an existing table into a new one. In this tutorial, we explain how SELECT INTO works, what it’s used for and…
Elena KharichkinaShutterstockYou likely have several queries and procedures that you frequently use when working with your database. Rather than writing those blocks of code out from scratch every time, you can use SQL stored procedures to save and retrieve them. We tell you everything you need to know about…
ChinnapongShutterstockThe ability to filter records based on your own criteria is indispensable in SQL. Luckily SQL WHERE clauses make that easy. WHERE clauses can be used to narrow down your search results based on conditions of your choosing. In this tutorial, we explain what SQL WHERE is, how it…
NDAB CreativityshutterstockIf you’re trying to improve the readability of your data, you might want to combine records from different tables into a new target table, without duplicates. Rather than copying records piece by piece into the new table, you can use SQL’s UNION operator. In this tutorial, we…
Wright StudioshutterstockThere are numerous approaches to storing large volumes of data and retrieving data from these volumes. However, no database technology is as widespread and established as SQL, the standard language for relational databases. We explain what SQL is and the features of the language.…
metamorworksshutterstockWho comes out as the winner of this MongoDB vs SQL comparison depends on many factors. In this article, we’ll present the two approaches and compare their strengths and weaknesses. We’ll explain what SQL and NoSQL mean and what advantages and disadvantages come with both…
REDPIXEL.PLshutterstockWhile more and more companies are beginning to rely on so-called NoSQL databases, there are still countless reasons why the traditional relational approach might be the better option for you. Ultimately, it always depends on what you’re using it for. We’ve looked at two of the…
Wright StudioshutterstockIn terms of databases, alternatives to the SQL approach have existed for quite some time. The advantages of a relational system shouldn’t be overlooked though. In fact, it might be exactly what your project requires. Here, we’ll go over which NoSQL solutions are worth considering…
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