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Last chance: SQL Essentials For Dummies eBook (worth $10) free download0 0
Two eBook offers (worth a combined $28) that you can download for free expire today, here's a reminder of the SQL Essentials For Dummies offer. FOR DUMMIES is a ...
In SQL, anything you evaluate / compute with NULL results into UNKNOWN This is why SELECT * FROM MyTable WHERE MyColumn != NULL or SELECT * FROM MyTable WHERE MyColumn <> NULL gives you 0 results.
sql - Not equal <> != operator on NULL - Stack Overflow
I have seen SQL that uses both != and <> for not equal. What is the preferred syntax and why? I like !=, because <> reminds me of Visual Basic.
Should I use != or <> for not equal in T-SQL? - Stack Overflow
Microsoft SQL Server is one of the exceptions: it doesn't support , and requires .
The @CustID means it's a parameter that you will supply a value for later in your code. This is the best way of protecting against SQL injection. Create your query using parameters, rather than concatenating strings and variables. The database engine puts the parameter value into where the placeholder is, and there is zero chance for SQL injection.
"For years, DBAs asked for a simple way to gather and view SQL events data in real-time," said Josh Stephens, Vice President of Product Strategy at Idera. "We're excited to give DBAs a free solution ...