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SQL SERVER - Downgrade Database to Previous Version

SQL SERVER – Downgrade Database to Previous Version

October 16, 2008
Pinal Dave
SQL Performance
Database, Software Development

Can you downgrade database files from SQL Server 2005 to 2000? No tool does it. Install the old version, recreate the schema and move the data yourself.

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UNION result with all rows.

SQL SERVER – Introduction and Example of UNION and UNION ALL

October 15, 2008
Pinal Dave
SQL Performance
SQL Joins, SQL Scripts, SQL Union clause

A simple example of UNION and UNION ALL with two table variables. UNION removes the duplicate rows, while UNION ALL keeps every row from both tables.

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SQL SERVER - Get Numeric Value From Alpha Numeric String - UDF for Get Numeric Numbers Only

SQL SERVER – Get Numeric Value From Alpha Numeric String – UDF for Get Numeric Numbers Only

October 14, 2008
Pinal Dave
SQL Tips and Tricks
SQL Function, SQL Scripts, SQL String

A simple UDF that gets only the numbers from an alpha numeric string, using PATINDEX and STUFF, with test values for empty, NULL and mixed strings.

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Gouache painting: on a workbench, a pair of plain smooth brass tweezers holds one polished clay marble, while a wide wooden clamp holds a bundle of three marbles tied with string; a loose marble and a second tied bundle lie nearby, one string vermilion

JSON_QUERY or JSON_VALUE: Match the JSON Shape

October 13, 2008
Pinal Dave
SQL Tips and Tricks
SQL Function, SQL NULL, SQL Server, SQL String

JSON_QUERY or JSON_VALUE depends on the JSON shape you need. One read-only document exposes scalar, object, array, JSON null and missing-path results side by side.

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SQLAuthority News - SQL Injection - SQL Joke, SQL Humor, SQL Laugh

SQLAuthority News – SQL Injection – SQL Joke, SQL Humor, SQL Laugh

October 12, 2008
Pinal Dave
SQLAuthority News
Best Practices, Database, DBA, SQL Humor, SQL Server Security

The SQL Injection cartoon readers sent me many times, finally on the blog. Plus a demo of how dynamic SQL opens the door to it, and a way to close it.

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A baker's hand fitting a star nozzle to a piping bag, a round nozzle set aside beside a half-decorated cake

OLE DB or ODBC for Connecting to SQL Server

October 11, 2008
Pinal Dave
SQL Tips and Tricks
Linked Server, SQL Connection, SQL Server, SSIS

Choose OLE DB or ODBC for SQL Server by the component you run, especially SSIS, linked servers, and applications using current drivers.

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SQL SERVER - 2008 - Enhenced TRIM() Function - Remove Trailing Spaces, Leading Spaces, White Space, Tabs, Carriage Returns, Line Feeds

SQL SERVER – 2008 – Enhenced TRIM() Function – Remove Trailing Spaces, Leading Spaces, White Space, Tabs, Carriage Returns, Line Feeds

October 10, 2008
Pinal Dave
SQL Performance
SQL Function, SQL Scripts, SQL String, SQL Utility

Need to remove trailing spaces, leading spaces, tabs, carriage returns and line feeds? Here is an enhanced TRIM function built from a script by Russ and Erik.

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