Both of these have roots in early CODASYL specifications. The third sub-language in SQL declares queries, through the SELECT statement and relational joins. The SELECT statement tells the query ...

SELECT options refine results As we saw in the last article, the SQL SELECT statement has the widest variety of query options, which are used to control the way data is returned. These options ...

and the SQL syntax is, predictably, the same as Apache Hive. But Impala’s main difference from Drill is that it’s not meant to be source-agnostic; it queries Hadoop exclusively. HAWQ for ...

In this example, Transact-SQL will create a new table with all columns ... Create a new table from the results of two separate queries with the UNION keyword. Build a SELECT statement similar ...

Analyze database contents using basic, intermediate and advanced SQL statement syntax and usage. Demonstrate capability to query data from multiple tables using SQL JOINS. Create and modify database ...

the first one being the ease of transition for people moving from standard T-SQL query syntax to this new method of data retrieval. Both LINQ to SQL and T-SQL have very similar syntax and command ...