SQL SERVER – FIX : Error 15023: User already exists in current database.

Error 15023: User already exists in current database. 1) This is the best Solution. First of all run following T-SQL Query in Query Analyzer. This will return all the existing users in database in result pan. USE YourDB GO EXEC sp_change_users_login 'Report' GO Run following T-SQL Query in Query Analyzer…
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SQL SERVER – Primary Key Constraints and Unique Key Constraints

Primary Key: Primary Key enforces uniqueness of the column on which they are defined. Primary Key creates a clustered index on the column. Primary Key does not allow Nulls. Create table with Primary Key: CREATE TABLE Authors ( AuthorID INT NOT NULL PRIMARY KEY, Name VARCHAR(100) NOT NULL ) GO…
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SQL SERVER – UDF – Function to Convert Text String to Title Case – Proper Case

Following function will convert any string to Title Case. I have this function for long time. I do not remember that if I wrote it myself or I modified from original source. Run Following T-SQL statement in query analyzer: SELECT dbo.udf_TitleCase('This function will convert this string to title case!') The…
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SQL SERVER – Query Analyzer Shortcuts

Download Query Analyzer Shortcuts (PDF) Shortcut Function Shortcut Function ALT+BREAK Cancel a query CTRL+SHIFT+F2 Clear all bookmarks ALT+F1 Database object information CTRL+SHIFT+INSERT Insert a template ALT+F4 Exit CTRL+SHIFT+L Make selection lowercase CTRL+A Select all CTRL+SHIFT+M Replace template parameters CTRL+B Move the splitter CTRL+SHIFT+P Open CTRL+C Copy CTRL+SHIFT+R Remove comment CTRL+D…
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SQL SERVER – Query to find number Rows, Columns, ByteSize for each table in the current database – Find Biggest Table in Database

USE DatabaseName GO CREATE TABLE #temp ( table_name sysname , row_count INT, reserved_size VARCHAR(50), data_size VARCHAR(50), index_size VARCHAR(50), unused_size VARCHAR(50)) SET NOCOUNT ON INSERT #temp EXEC sp_msforeachtable 'sp_spaceused ''?''' SELECT a.table_name, a.row_count, COUNT(*) AS col_count, a.data_size FROM #temp a INNER JOIN information_schema.columns b ON a.table_name collate database_default = b.table_name collate…
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