MSSQL Connection string
(1) OLE DBWindows Authentication
The code is as follows
Copy Code
"Provider=sqloledb;data source=pek7-6tkx23xsqlexpress;initial catalog=test; Trusted_connection=yes; ";SQL Server Authentication"Provider=sqloledb;data source=127.0.0.1sqlexpress;initial catalog=test; User Id=sa; password=123456; ";
(2) SqlConnectionWindows Authentication
The code is as follows
Copy Code
High-performance Mysql -- Schema and data type optimization; high-performance Mysql Schema
Good logical design and the foundation of High Performance for physical designers1. Select an Optimized Data TypeSmaller is usually betterCPU cycle required for smaller disk, memory,
MSSQL to MySQLOpen SQL Server Management Studio and run the following statement to establish a linked server with the MySQL server through the previously created ODBC data source.EXECsp_addlinkedserver@server = 'mysqltest',@srvproduct='MySQL',@provider = 'Msdasql',@datasrc = 'Database name'GOEXECsp_addlinkedsrvlogin@rmtsrvname='mysqltest',@useself='false',@local
Mysql database performance optimization sub-query and mysql database performance optimization
I remember that when I was working on a project, I heard a sentence and tried not to use subqueries. So let's take a look at this article to see if this sentence is correct.
Before that, we need to introduce some conceptual th
Php imports a large amount of data to mysql Performance optimization skills, mysql Performance Optimization. Php performance optimization tips for importing a large amount of data to mysql. my
1, write their own procedures, the method is relatively troublesome, but relatively flexible processing, if the conversion of data to be processed, using this method is more appropriate, this method is not suitable for large data migration, not only inefficient, but also need more memory;2, through BCP export TXT or CSV format, and then import on the MySQL side; This method can only process one table at a time, but can be written as batch processing,
Mysql performance optimization tool -- Introduction to tuner-primer and mysql Performance Optimization
Download and change the execution permission:Wget http://www.day32.com/MySQL/tuning-primer.shChmod + x tuning-primer.sh/Tuning-primer.shResult report:It will be marked with
High Performance MySQL Reading Notes (on), high performance mysqlHigh Performance MySQL is a classic book. From the application layer to the database to the hardware platform, all the tuning techniques and common problems are mentioned. Various concepts and techniques of the
Mysql performance optimization suggestions, Mysql Performance Optimization
For Mysql performance optimization, refer to [1], [2], and [3]. Some of the articles that have been used and have relatively good results are as follows:1.
MySQL Storage server S:I5,8G,SSD; CentOS 7 x64; Install graphical monitoring tools (the monitoring tools themselves also consume resources)Jetty Application Server A:I5,8G,SSD; CentOS 7 x64; Install graphical monitoring tools (the monitoring tools themselves also consume resources)LAN Internal testing machine T:I5,8G,SSDHow to obtain the limit performance parameters of S and a, and the limit
MySQL latency Association performance optimization method and mysql latency performance optimization
Background]
An error occurred while alerting the load of a business database. The cpu usr reached 30-40, which remained high. Use tools to view the SQL statements being executed by the database. The most advanced ones a
MySQL batch SQL insert performance optimization details, mysql Performance Optimization
For some systems with a large data volume, the database faces problems in addition to the low query efficiency, but also the long data warehouse receiving time. Especially for the report system, the time spent on data import may be
MySql Performance-related concepts (performance tip0) bitsCN.com
Topic: this is something that was recently recorded in high-performance MySqL version 2 ~
# Read locks (shared locks) and write locks (exclusive locks): Read locks are shared and are not blocked. reading the sa
Does MySql Delete and update operations affect performance? mysql Delete and update Performance
The cost of Delete and update operations is usually higher than that of insert operations. Therefore, a good design requires less database update and delete operations.
3.1 update operations
Database update operations bring
Mysql performance optimization 2: mysql Performance Optimization
Next, Mysql performance optimization 1Create an appropriate index
To improve database performance, indexing is the best
Mysql-High-Performance Index policy, mysql-High-Performance IndexIndependent index:
An independent index means that an index Column cannot be part of an expression or a function parameter.
Example 1:SELECT actor_id FROM actor WHERE actor_id + 1 = 5 -- this method does not work even if an index is created on actor_id.
; Proc. Outputdatareceived+=NewDatareceivedeventhandler (proc_outputdatareceived); Proc. Start (); Proc. Beginoutputreadline (); Proc. WaitForExit (); returnHassqlloader; } voidProc_outputdatareceived (Objectsender, Datareceivedeventargs e) { if(!Hassqlloader) {Hassqlloader= E.data.startswith ("Sql*loader:"); } } //has been implemented, but there is no transaction, so it is not introduced for the time being. Private BOOLExe
Website bottleneck analysis-MYSQL performance analysis, website bottleneck mysql Performance
1. Slow query settings and Analysis
Search for slow query parameters
mysql> show variables like 'long%';+-----------------+----------+| Variable_name | Value |+-----------------
MySQL performance optimization (1), MySQL performance optimization (
Mysql performance can be optimized. Welcome
The information you provided is basically useless. You did not mention the application type of your database and
This is a creation in
Article, where the information may have evolved or changed.
Performance test Report for Kingshard
Before the several blog, to everyone to share is Kingshard (Https://github.com/flike/kingshard) architecture and design. In fact, many people are also very concerned about the performance of Kingshard. Recently enthusiastic Netizen Bigpyer has done the detailed
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.