For more information about bugs fixed in SQL Server 2000 Service Pack 4, click the following article number to view the article in the Microsoft Knowledge Base:314128 FIX: When an RPC call is performed, Access with conflicting values includes an
13. T-SQL and SQL query AnalyzerWhat is SQL?What is T-SQL?Introduce new features of T-SQLHow to Use T-SQLSummaryIn this chapter, we will introduce some basic concepts about the Structured Query Language and transact-SQL and their differences. This
stored procedure authoring experience and optimization measures One, suitable for the reader object: Database development programmer, database of a lot of data, involving the SP (stored procedure) optimization of project developers, the database has
Generally, you can use the SQL event Probe:
1. Find the worst executed Query
For example, you can create a trail to capture events related to the tsql and stored procedure event classes (especially RPC: Completed and SQL: batchcompleted. This trail
SQL Server database optimization solution
There are many reasons for slow query speed. The following are common causes:
1. No index or no index is used (this is the most common problem of slow query and is a defect in programming)
2. Low I/O
server| Data | database | optimization
There are a number of reasons why queries are slow, often as follows:
1, no index or no index (this is the most common problem of query slow, is the defect of program design)
2, I/O throughput is small,
SQL server databases are the most widely used relational databases. However, in actual application, many databases need to be optimized. When the data volume is particularly large, we must rely on the optimization of our team's database. Such as
There are many reasons for slow query speed. The following are common causes:
1. No index or no index is used (this is the most common problem of slow query and is a defect in programming)
2. Low I/O throughput, resulting in a bottleneck effect.
3.
There are many reasons for slow query speed. The following are common causes: 1. No index or no index is used (this is the most common problem of slow query and is a defect in programming) 2. Low I/O throughput, resulting in a bottleneck effect.
Pivot is used to rotate column values to column names (row to column), and SQL Server 2000 can be implemented with an aggregate function with a case statementThe general syntax for pivot is: Pivot (aggregate function (column) for column in (...)) As
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.