Necessity is the mother of new PowerShell code :-)! Today, I received an email request to get the list of all indexes in a given TableName but the requester did not specify the DatabaseName although the SQL InstanceName was specified. It would be too easy to ask the person for the DBName and script it … Continue reading PowerShell & SQL Server: Search & Find Indexes By SchemaName, TableName, IndexName Or ColumnName Across Instances/DB’s
There are a bunch of tools in the market to do the database comparisons for differences but if you want to do it for free (and programmatically) at a basic level, you could use the method outlined below. For me, this came about as a result of an user asking "So, what is different between … Continue reading SQL Server: Compare Database Tables/Indexes/Views/SP’s etc. For Differences Across Instances
Update Sep 7, 2018: This article uses deprecated commands. Please checkout this blog post on "Alter Index Vs DBCC IndexDefrag Vs DBCC DBReIndex". In the newer versions, I prefer ALTER INDEX although it has not been good at defragmenting in all cases. A good defrag script is worth its weight in gold. This time, I copied … Continue reading SQL Server: Identify And Defragment Indexes Using DBCC SHOWCONTIG & DBCC INDEXDEFRAG
Why DELETE is bad? In Oracle, when it comes to deleting ** A L L ** the data from a table (clearing the contents of a staging table for example), using a DELETE statement is the most inefficient choice. Here are some reasons why DELETE is bad It uses UNDO It uses REDO It fires … Continue reading Oracle – TRUNCATE vs DELETE – Spoiler: TRUNCATE Wins & Why? Hours vs Seconds!
Oracle's logical storage structures: To developers who work with Oracle, the concept of tablespace is familiar. We create tables and indexes in tablespaces taking appropriate care not to place all of our data into one tablespace. Let us take a quick look at the logical structure of an Oracle database A database has one or … Continue reading Oracle’s APPEND Hint – The Key Secret To Fast BULK Loading With NOLOGGING!