In SQL, the IN
operator allows you to filter your query results based a list of values.
You can also use it to match any value returned by a subquery (a subquery is a query that’s nested inside another query).
Continue readingIn SQL, the IN
operator allows you to filter your query results based a list of values.
You can also use it to match any value returned by a subquery (a subquery is a query that’s nested inside another query).
Continue readingIn SQL, the LIKE
operator allows you to do pattern matching. It determines whether a specific character string matches a specified pattern.
A pattern can include regular characters and wildcard characters.
Continue readingThe SQL CREATE TABLE ... AS SELECT
statement enables you to insert the results of a query into a new table.
The SQL SELECT INTO
statement is a Sybase extension that can be used to insert the results of a query into a table (or a variable, depending on the DBMS).
The SQL INSERT
statement is most commonly used to insert individual rows into a table.
But you can also insert the results of a query into a table. This means that you can insert multiple rows at once (as long as they’re returned by the query).
Continue readingThis article provides an overview of the self join in SQL, as well as a basic example.
Continue readingThis article provides an overview of the natural join in SQL, as well as some basic examples.
Continue readingThis article provides an overview of the FULL JOIN
in SQL, as well as some basic examples.
This article provides an overview of the CROSS JOIN
in SQL, as well as some basic examples.
This article provides an overview of the LEFT JOIN
in SQL, as well as some basic examples.