SQL SELECT statement The SELECT statement tells the query optimizer what data to return, what tables to look in, what relations to follow, and what order to impose on the returned data.

Hi I need some help with a select statement in MS SQL. I have a table that need to check if there duplicate items there. The problem is that each items is based off of 4 fields in the table. Here ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement.

I hope this is the right place for this type of question. I apologize for the question length but to try and be complete I'll include a bit of background.I am currently working on a project ...

mcp_ohmy_sql is an open-source Text-to-SQL system developed for deployment in enterprise production. It is not about specific ...

The PROC SQL SELECT statement uses a CONNECTION TO component in the FROM clause to retrieve data from the ORACLE table. The Pass-Through query (in italics) is enclosed in parentheses and uses ORACLE ...

The outer PROC SQL query retrieves data from the view descriptor; the subquery uses a Pass-Through query to retrieve data. This query returns the names of employees who earn less than the average ...

Assuring optimal performance of database applications starts with coding properly formulated SQL. Poorly written SQL and application code is the cause of most performance problems. As much as 75% of ...

Here's a look at different ways to query Hadoop via SQL, some of which are part of the latest edition of MapR's Hadoop distribution ...