Abstract: Constraints in form regular expressions over strings are ubiquitous. They occur often in programming languages like Perl and C#, in SQL in form of LIKE expressions, and in web applications.

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Since upgrading from 9.2.4 to 9.3.6 the expression feature in a query builder using MySQL as a datasource no longer works. Existing expression show the "Operation" and "Expression" option including ...

It is not uncommon that a single SQL statement such as a SELECT statement includes sub-SQL SELECT statements, or sub-queries, that generate a sub-result set within the top-level statement. If these ...

Schema design, indexes, queries, configs, I/O... what could go wrong? Follow these 10 essential tips to keep your MySQL servers humming. MySQL is the world’s most widely used open source database, and ...

OLE DB or ODBC error: [Expression.Error] We couldn’t fold the expression to the data source. Please try a simpler expression.. What does it mean and how can you fix it? To understand what’s going on ...

JavaScript Object Notation (JSON) is a lightweight, data interchange format widely used to store semi-structured and unstructured data, as well as interchange data with REST Web Services. MySQL ...

Abstract: Web applications have brought with them new classes of network security vulnerabilities, such as SQL Injection Attack. SQL Injection Attack is a class of attacks that many of the Web-based ...