DocumentDB SQL – Composite SQL Queries
Composite Query enables you to combine data from existing queries and then apply filters, aggregates, and so on before presenting the report results, which show the combined data set. Composite Query…
Composite Query enables you to combine data from existing queries and then apply filters, aggregates, and so on before presenting the report results, which show the combined data set. Composite Query…
DocumentDB SQL provides support for User-Defined Functions (UDFs). UDFs are just another kind of JavaScript functions you can write and these work pretty much as you'd expect. You can create…
These days JavaScript is everywhere, and not just in browsers. DocumentDB embraces JavaScript as a sort of modern day T-SQL and supports the transactional execution of JavaScript logic natively, right…
In DocumentDB, we actually use SQL to query documents. If we are doing .NET development, there is also a LINQ provider that can be used and which can generate appropriate…
DocumentDB supports a host of built-in functions for common operations that can be used inside queries. There are a bunch of functions for performing mathematical calculations, and also type checking…
In relational databases, a parameterized query is a query in which placeholders are used for parameters and the parameter values are supplied at execution time. DocumentDB also supports parameterized queries,…
In DocumentDB SQL, the SELECT clause also supports scalar expressions like constants, arithmetic expressions, logical expressions, etc. Normally, scalar queries are rarely used, because they don't actually query documents in…
In DocumentDB SQL, Microsoft has added a key feature with the help of which we can easily create an array. It means when we run a query, then as a…
In relational databases, SQL aliases are used to temporarily rename a table or a column heading. Similarly, in DocumentDB, aliases are used to temporarily rename a JSON document, sub-document, object…
In relational databases, the Joins clause is used to combine records from two or more tables in a database, and the need to join across tables is very important while…