Silent truncation can happen while SQL Server evaluates a bounded expression. These examples compare the lost characters with a max expression and a max REPLICATE input. Check stored lengths before blaming a clipped display.
SQL SERVER – CASE Statement/Expression Examples and Explanation
The CASE Statement/Expression works anywhere an expression can, from the SELECT list to WHERE and HAVING. Here are its two basic forms with examples.
SQL SERVER – Fix : Error: 18452 Login failed for user ‘(null)’. The user is not associated with a trusted SQL Server connection.
Error: 18452 Login failed for user ‘(null)’ means the server only allows Windows Authentication. Switch to Mixed Mode and enable the sa login to fix it.
SQL SERVER – Stored Procedures Advantages and Best Advantage
My take on stored procedures advantages, and the best one of all: execution plan retention and reuse, since the rest can be had without them.
SQL SERVER – Script to Find SQL Server on Network
I manage lots of SQL Servers and forget their names, so I use xp_CMDShell and ISQL -L to find SQL Server on network machines. A short video is included.
SQL SERVER – 2005 – Disable Triggers – Drop Triggers
Two ways to stop a trigger from firing in SQL Server 2005: drop it or disable it. I prefer DISABLE TRIGGER and show the syntax to disable triggers.
SQL SERVER – Fix : Error 1702 CREATE TABLE failed because column in table exceeds the maximum of columns
Error 1702, CREATE TABLE failed, happens when a table goes past the 1024 column limit in SQL Server 2000. The fix is to cut the columns to 1,024 or fewer.
SQL SERVER – Fix : Error: 3902, Severity: 16; State: 1 : The COMMIT TRANSACTION request has no corresponding BEGIN TRANSACTION.
An SSIS package fails with Error 3902: the COMMIT TRANSACTION request has no corresponding BEGIN TRANSACTION. Two fixes, one is RetainSameConnection set to true.
Low Memory Signals in the Resource Monitor Ring Buffer
Read the resource monitor ring buffer alongside Windows and process memory signals to investigate cache shrinkage in SQL Server.
SQL SERVER – UDF – User Defined Function to Extract Only Numbers From String
A simple UDF, ExtractInteger, to extract only numbers from string input. I test it with a phone number that also has letters in it.