Oracle9i offers some great tools to make it easy to view the execution plan and trace information for a SQL statement. Prior to Oracle8i, you had to create a plan table and execute special syntax ...

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.

If an attacker tries to input a malicious SQL statement, the database will treat the statement as data, not code, and the query won’t be turned into a malicious one. 2. Use stored procedures ...

There are several types of SQL injection, but they all involve an attacker inserting arbitrary SQL into a web application database query. The simplest form of SQL injection is through user input.

You can use SQL to create, modify, search, and display database information. Dynamic SQL lets you create a query string based off of user input. SQL Server allows you to create dynamic SQL statements.

Joey on SQL Server Understanding Dirty Reads: What NOLOCK Does to Your Queries Let's break down when it's ideal to use the NOLOCK hint and when you should never use it. By Joey D'Antoni 01/21/2022 ...

Understanding SQL Statements A SQL statement is something a DBA or a developer writes to extract, insert, update or delete information from the database. Depending on how that SQL statement is written ...

Prepared statements avoid the process of compiling, parsing and running a stored procedure or inline SQL statement in your code. The PHP prepared statement function speeds up the application ...

A SQL injection attack, then, is when a threat actor uses a SQL query to inject unauthorized code into an application or database — in essence, weaponizing potential user input. Depending on its level ...