DDL triggers fire when someone changes the schema. How to write one, what EVENTDATA gives you, and how to get back in if one locks you out.
SQL SERVER – UDF – Function to Get Previous And Next Work Day – Exclude Saturday and Sunday
Inspired by a ColdFusion post by Ben Nadel, here is the UDF I use to get the previous or Next Work Day for any date, skipping Saturday and Sunday.
Grouping Current Connections by Program Name and Host Name
Group connections by program name, host, and login, then inspect client addresses and idle sessions without trusting client labels blindly.
SQL SERVER – Fix : Error Msg 4214 – Error Msg 3013 – BACKUP LOG cannot be performed because there is no current database backup
Fix the SQL Server error Msg 4214 and Msg 3013, where BACKUP LOG fails because no current database backup exists. Here is why it happens.
CHECKSUM: A Matching Result Does Not Prove Text Identity
CHECKSUM matches do not establish unchanged text. Preserve complete values and compare hyphen and trailing-space differences explicitly.
SQL SERVER – Validate Field For DATE datatype using function ISDATE()
A CSV import crashed on the date 30/2/2007. Use the ISDATE() function to validate a VARCHAR column in a staging table before moving rows to a DATETIME field.
TRY_CONVERT Integer Validation: Check the Target Type
TRY_CONVERT integer validation starts with the destination type and a separate input policy. This example compares blank, signed, decimal and overflowing text without writing data.