What is xp_cmdshell used for, and how do you run a batch file using T-SQL? Examples run a system command, a plain BAT file and one with a parameter.
SQL SERVER – 2005 List All Tables of Database
The simple way to list all tables of a database in SQL Server 2005: select from sys.tables to get every table that users have created.
SQL SERVER – Repeate String N Times Using String Function REPLICATE
REPLICATE repeats a string N times. I found this T-SQL string function while searching for replication, and it is handy when you need repeated text.
SQL SERVER – Comparison Index Fragmentation, Index De-Fragmentation, Index Rebuild – SQL SERVER 2000 and SQL SERVER 2005
What is Index Fragmentation and how do page splits cause it? How to measure it with DBCC SHOWCONTIG in SQL Server 2000 and sys.dm_db_index_physical_stats in 2005.
SQL SERVER – 2005 Row Overflow Data Explanation
Is 8060 bytes per row still the limit in SQL Server 2005? Yes, but varchar, nvarchar, varbinary, sql_variant and CLR types are excluded. That is row overflow data.
SQL SERVER – Explanation and Comparison of NULLIF and ISNULL
NULLIF returns NULL when two expressions are equal and the first one when they are not. Here is how it compares with ISNULL and the matching CASE expression.
Current Date and Time in SQL Server: GETDATE, SYSDATETIME and More
You can read the current date and time in SQL Server in eight ways, and they differ in precision and time zone. This post runs them side by side, shows that each one is evaluated once per statement, and picks the right one for defaults, audit columns and reports.