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SQL SERVER – Primary Key Constraints and Unique Key Constraints

Pinal Dave
SQL, SQL Performance, SQL Server, SQL Tips and Tricks
Database, Software Development, SQL Coding Standards, SQL Constraint and Keys, SQL Download, SQL Error Messages, SQL Index, SQL Joins, SQL Scripts, SQL Server Security
97 Comments
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

Pinal Dave
SQL, SQL Server, SQL Tips and Tricks
SQL Function, SQL Scripts, SQL String
102 Comments
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

Pinal Dave
SQL, SQL Server, SQL Tips and Tricks
SQL Download, SQL Shortcut, SQL Utility
36 Comments
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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Pinal Dave is an SQL Server Performance Tuning Expert and independent consultant with over 22 years of hands-on experience. He holds a Masters of Science degree and numerous database certifications.

Pinal has authored 14 SQL Server database books and 94 Pluralsight courses. To freely share his knowledge and help others build their expertise, Pinal has also written more than 5,800 database tech articles on his blog at https://blog.sqlauthority.com.

Pinal is an experienced and dedicated professional with a deep commitment to flawless customer service. If you need help with any SQL Server Performance Tuning Issues, please feel free to reach out at pinal@sqlauthority.com.

Pinal is also a CrossFit Level 1 Trainer (CF-L1) and CrossFit Level 2 Trainer (CF-L2).

Nupur Dave is a social media enthusiast and an independent consultant. She primarily focuses on the database domain, helping clients build short and long-term multi-channel campaigns to drive leads for their sales pipeline.

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