Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

While checking SQL syntax itself is somewhat straightforward, [Joe]’s sql-lint tool will also check the semantics of it by looking up the actual database and performing sanity checks on it.

FROM statement using source data that's known to have flaws. Back to the OP - either filter out the bad records in the WHERE clause, or put a CASE statement in the UPDATE list. No need for a cursor.

Snowflake is adding generative AI-powered SQL functions to help data analysts and their organizations analyze unstructured data with SQL. These new AISQL functions will be part of Snowflake’s ...

Security researchers have developed a generic technique for SQL injection that bypasses multiple web application firewalls (WAFs). At the core of the issue was WAF vendors failing to add support ...

The PHP development language provides you with a "prepare" function to send a prepared statement to a SQL database. You can use full, inline SQL statements in the prepared statement function or ...

The EXECUTE statement sends dynamic non-query, DBMS-specific SQL statements to the DBMS and processes those statements. In some SAS/ACCESS interfaces, you can issue an EXECUTE statement directly ...

Learn how to master the SELECT statement to form truly useful data queries. This article explains functions, clauses, and keywords that will make your life a lot easier.

I'm doing this in a stored proc using SQL Server.<BR><BR>Basically, I'm executing 1 SELECT statement and if that returns any rows then I want to do a SELECT INTO #Temp With criteria A.

The CONNECT statement establishes a connection with the DBMS. You establish a connection to send DBMS-specific SQL statements to the DBMS or to retrieve DBMS data. The connection remains in effect ...