Articles

Technical Article

Microsoft Platform Vaults into New Performance Territory

SQL Server 2000 Enterprise Edition clocked an incredible 308,620 transactions per minute (tpmC)1 running on Windows .NET Server 2003, Datacenter Edition on an NEC TX7 server with 32 Intel Itanium 2 processors. The NEC system sets a new performance record on Windows, nearly doubling the best published 32-bit result. In addition, this Microsoft/Intel/NEC solution delivers the best price-performance of all results on the Top Ten performance list, at just $14.96/tpmC.

2002-09-12

3,369 reads

Technical Article

NGSSQuirreL Released.

NGSSoftware have released NGSSQuirreL, a security audit and management tool for SQL Server. Designed to ease the administrative burden of securing SQL Server, NGSSQuirreL finds the security holes then generates a lockdown script based upon the vulnerabilities found so the server can be secured in a matter of minutes; and regular audits can help keep it that way. For more information or an evaluation copy please see the NGSSite - http://www.nextgenss.com/.

2002-09-11

464 reads

SQLServerCentral Article

Performance Adding Hints

During the process of performance tuning queries and stored procedures there comes a time when you will notice that the execution plan selected by SQL Server is not the best plan. On occasion, everything you try doesnt cause SQL Server to choose the best way to execute your code. These are the times when hints can improve performance.

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2002-09-10

9,411 reads

SQLServerCentral Article

Using Bitwise Operators to Boost Performance

Bitwise operators can be challenging to manage at first. However, with practice and patience, and under the right conditions, these operators can provide remarkable performance improvements in production environments. This article will compare two methods of accomplishing the same output, one with a normalized model and the other with bitwise operators.

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2002-09-05

11,668 reads

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Question of the Day

STRING_AGG's behavior

Executing the following script (Sql Server 2022), you get the table t0 with 10 rows:
CREATE TABLE t0
( id     INT PRIMARY KEY
, field1 VARCHAR(1000)
, field2 VARCHAR(MAX));
INSERT INTO t0
SELECT
  gs.value
, REPLICATE ('X', 1000)
, REPLICATE ('Y', 1000)
FROM generate_series(1, 10, 1) gs;
GO
What happens if you execute the following statements?
  1. select STRING_AGG(field1, ';') within group (order by id)  from t0;
  2. select STRING_AGG(field2, ';') within group (order by id)  from t0;

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