A fifth and final way to optimize your SQL queries with ORDER BY clauses is to test and compare different options and scenarios. Depending on your data, your query, and your database, some of the ...

For one rather bad case I get a result set back with ~40k rows and ~100 columns because of all the joins. The SQL query takes ~15 seconds. The interesting thing is that upon benchmarking this query in ...

When attacker is making SQL injection he should probably use a space, single quotes or double dashes in his input. Our method consists of tokenizing original query and a query with injection ...

Contribute to metaperl/SQL-Abstract-Query development by creating an account on GitHub. ... This is partly due to other clauses needing to gain access to the SQL before the ORDER BY is appended to it, ...

Is it possible to order by a substring in a returned field?I've got a query which returns at most probably around 10 or so rows of 1 column. However the way this data is formated, it'd be convient ...

This is how Power BI generates its SQL and this is why there are limitations on the SQL you can use in DirectQuery mode: not all SQL queries that run standalone can be used in subqueries. Take the ...

So, let’s celebrate SQL turning 50, and consider how we can continue to develop and use it in the future. Charly Batista is PostgreSQL technical lead at Percona .

If your business uses relational databases to store data, you may have used a SQL SELECT clause to create new tables from query results. This method won't work in SQL Server, but Microsoft's Trans ...