format is: SQLCMD -u user name-p password-S IP address If the port number is omitted, the default connection is 1433 port It has a slightly different connection method and Query Analyzer, assuming that the password for the SQL2005 server SA on 192.168.1.55 is SA, The port is 1434 We can connect like this sqlcmd-u sa-p sa-s 192.168.1.55,1434 If you connect port 1433, you can omit the port: sqlcmd-u sa
server| Query Analysis
These days in the web development, often need to connect SQL Server, but SQL Server is the server on the Internet, the service provider gave a sqlconnectionstring, However, in the connection string found that the SQL Server does not use the default 1433 port, so I would like to Query Analyzer should not
Tags: share track picture ack purge backup LED option integrationObjectiveThe log of the database is a strong basis for helping the database administrator to track the various events that have occurred in the database before. MySQL provides error log, Binlog log (binary log)
Slow query log: all SQL statements that run longer than long_query_time in MySQL slow query log records help you find slow SQL statements, so that we can optimize these SQL statements. Slow query
that may be used when querying Key: The index that was actually used when querying Key-len: Length of index field Rows: Number of scanned rows Extra: Description and description of the implementation Through the analysis of explain, it is confirmed that in the above example, the full table scan of the sales table results in inefficient, by creating an index on the sales table: www.2cto.comSQL codeCREATE INDEX index_sales_year on sales (year); After the index is created, the
Essays-66 Articles-0 comments-MySQL slow query (ii)-Pt-query-digest detailed slow query log one, Introduction Pt-query-digest is a tool for analyzing MySQL slow
To query the reason why analyzer cannot be debugged in one step, take the following steps:
1. set the server authentication attribute to hybrid mode (window and SQL authentication)
2. on the control panel, open service and open properties for the MSSQLSERVER service. on the logon page, set the logon identity to the local account and password of the server, such as administrator and password 123;3. resta
open the new error logAfter 5.7: The server will turn off this feature. You can only use the Rename original error log file to manually flush the log to create a newThe method is as follows: MV Mysqld.err Mysqld.err.oldBinary logs: Binary log binary log IndexThe binary log
Tags: LAN uses the row service-side COM ref ASE contains includeMySQL Server has four types of logs--error log, General Query log, Binary log, and Slow query log. The first one is the error lo
Tags: http knowledge point error variable coin lock table response Long MYQLLogs in MySQL include: error log, binary log, General query log, slow query log, and so on. Here is the main
:0.000000rows_sent:1rows_examined:0 SETtimestamp=1478791222; Selectsleep (3);Mode two: write to the databaseCheck the current log output mode firstMysql> Show variables like '%log_output% ';
+---------------+-------+
|variable_name | Value |
+---------------+-------+
| log_output | FILE |
+---------------+-------+
1 row in Set (0.00 sec)Set the output mode to File,tablemysql> set global log_output= ' file,table ';
Slow query log in MySQL is a very important feature, we can turn on the MySQL slow query log function, so that we can analyze the state and performance of each SQL execution to optimize.One, slow
Tags: ons slist number partition full table scan nts ges OTA htmFirst, IntroductionPt-query-digest is a tool for analyzing slow queries for MySQL, which analyzes Binlog, general log, Slowlog, It can also be analyzed using showprocesslist or MySQL protocol data crawled by tcpdump. The analysis results can be exported to
First, IntroductionPt-query-digest is a tool for analyzing slow queries for MySQL, which analyzes Binlog, general log, Slowlog, It can also be analyzed using showprocesslist or MySQL protocol data crawled by tcpdump. The analysis results can be exported to a file, the analysis process is the parameters of the
Disaster logAll DDL (Create, DROP, and alter) and DML (INSERT, UPDATE, DELETE_ statements, but not query statements) are loggedOpen Mysql.ini Find binary LoggingRevision changed toBinary Logging. Log - = "ABC"Restart MySQLFind E:\AppServ\MySQL\dataTwo more files belowabc.000001Abc.indexOpen Mysql.ini, find [client] revision to[Client]#no-beepTo create a new test
Like most relational databases, log files are an important part of the MySQL database. MySQL has several different log files, usually including error log files, binary logs, generic logs, slow query logs, and so on. These logs can
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.