SQL is the language of databases, and we’ve reviewed the most basic command statements used in data queries. There are a number of basic concepts that weren’t covered, such as SUM and COUNT ...

Read this SQL tutorial to learn when to use SELECT ... A simple SELECT statement is the most basic way to query multiple tables. You can call more than one table in the statement’s FROM clause ...

Basic SQL queries have a fairly simple structure. For example, a call to search for a particular order might look like SELECT * FROM orders WHERE orderid=1234 // first, pull the order ID from the ...

we’ll pick up where we left off with some additional functions and clauses you can use with the basic SELECT data query. SELECT options refine results As we saw in the last article, the SQL ...

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 ...

If you want to be included in the next wave of data-driven technology, learning Structured Query Language ... intensive and SQL-friendly bootcamps, classes and courses around. By teaching everything ...

Of course, it is impossible to adequately address all SQL performance issues in a column like this, but we can address the basics of SQL coding for performance ... This is fine for quick and dirty ...

Such is the case with SQL queries. They seem so innocent, and so useful. But dangers lurk within every space-separated keyword. Consider a basic query crafted using ordinary C# string concatenation: / ...