enable query

I. Why should I enable this query? Databases are prone to bottlenecks. Now Nosql is so popular that it is estimated that they are all depressed by databases. The statements that affect the query speed in mysql are very slow. These slow statements

In the previous article, we learned the basic data CURD method, but in more cases, due to the difference in business logic, CURD operations are often not that simple, especially under complicated business logic, this is also a shortcoming of the

Opening query statement caching is also a strategy to optimize MySQL. MySQL is a common database for our development programs. It has the ability to cache common query statements in memory, so that when a given query statement is invoked again,

thinkphp query Language with coherent operation can be very good to solve the complex business logic requirements, this article we first to in-depth understanding of the framework of the query language. 1. Query Language Introduction thinkphp

In the previous article we have mastered the basic data curd method, but in more cases, due to the differences in business logic, curd operations are often not so simple, especially complex business logic below, this is the ActiveRecord mode of

The programs we write may require a large number of database operations. Databases are often the cause of bottlenecks. Opening query statement caching is also a strategy to optimize MySQL. MySQL is a common database for our development programs.

Operation 3: Enable slow query logs for mongodb and mysql, start mongodb from the configuration file, and enable mongodbmysql 1. Start mongodb from the configuration file Create a configuration file:/usr/local/mongodb/etc/mongodb. conf The

35. use SQL query analyzer and SQL profilerUse SQL query AnalyzerUse SQL profilerOptimize T-SQL statementSummaryIn this chapter, we will continue with the description of the pre-stored procedures in Chapter 21st. This chapter describes how to use

The statements that affect the query speed in mysql are very slow. These slow statements may be written improperly or the Combined Query of multiple tables in big data, therefore, we need to find these statements, analyze the causes, and optimize

In linux, mysql enables slow queries. mysql statements that affect the query speed are slow, it may be that the write is not reasonable or the multi-table joint query in big data, etc. Therefore, we need to find these statements, analyze the causes,