Relational databases Before learning the SQL syntax, it's important to have a model for what a relational database actually is. A relational database represents a collection of related (two-dimensional) tables. Each of the tables are similar to an Excel spreadsheet, with a fixed number of nam...
SQL is necessary for almosteverythingdata related. Database systems have been around since the 1970’s and are used extensively at all companies and organizations. And to work with these databases at anything other than a very basic level, you need to understand and write SQL. And unlike some...
Database owners and database users with the ALTER ANY USER permission can create contained database users. After connecting to a contained database on an instance of SQL Server, a contained database user can access other databases on the Database Engine, if the other databases ha...
Emil is a database professional with 10+ years of experience in everything related to databases. During the years, he worked in the IT and finance industry and now works as a freelancer.His past and present engagements vary from database design and coding to teaching, consulting, and writing...
The Microsoft SQL Server 2005 Driver for PHP allows PHP developers to access data in SQL Server 2005 and SQL Server 2008 databases. The driver includes support for Windows and SQL Server Authentication methods, transactions, parameter binding, streaming, metadata access, connection pooling, and error...
OctoSQL is predominantly a CLI tool which lets you query a plethora of databases and file formats using SQL through a unified interface, even do JOINs between them. (Ever needed to join a JSON file with a PostgreSQL table? OctoSQL can help you with that.) ...
s StandardSQL or PostgreSQL, this meant some of the techniques I would normally apply wouldn’t work. This was frustrating at first, but at the same time it’s a good chance to practice other techniques that you might not think of when using the variant of SQL with which you regularly ...
Sign in to the Azure portal. From Home, under Azure services, select Create a resource. In the Create a resource pane, Under Categories, select Databases and in the results, select SQL Database. The Create SQL Database pane appears. Note You might see the Want to try Azure SQL Database...
In this tutorial, you’ll learn how to manipulate data withCASTfunctions to change the data type of a value or set of values into another, and use the concatenation expression to string character and numerical data values together. You’ll also practice running theCASTfunctio...
on the goals of the audit, it can be decided whether to audit all SQL Servers or just specific instances, and whether to include all databases or focus on specific ones with important information. It is crucial for the audit trail to cover all stages of transactions involving sensitive data....