perl sql query

Practical Extraction and Report Language Perl was originally designed by Larry Wall in December 18, 1987. Perl uses the features of C, sed, awk, shell scripting, and many other programming languages. Perl is generally called the Practical

    One of the coolest modules in Perl is the Perl database interface (DBI ). By providing a series of internal functions

A Perl application database uses the DBM package configured by itself to create and operate a database, therefore, the DBM package and other similar packages can be considered as a database extension. The other is to use the DBI package or similar

How to record mysql slow query SQL log and modify mysqld section of my. cnf: long_query_time1 ????????????? 1 indicates 1 second for a slow query -- log-slow-queries [file_name]? Slow query of log files -- log-queries-not-using-indexes: How to

In Perl development, it is very likely that some files in different formats, such as XML, PDF, CSV, and RSS files, are different from some binary data formats. Perl applications need to operate on these files to read and write them. In this case,

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 query, it can analyze Binlog, Gene RAL Log, Slowlog, can also be analyzed via

Use pt-query-digest to find the SQL statement that is not suitable, pt-query-digestsql  Overview of pt-query-digest1. Indexes can be executed more quickly, but there must be unreasonable indexes. If you want to find those indexes that are not very

The most commonly used package for Perl access to a database is DBI, which can be found in www.cpan.org. Also need to install the corresponding database driver package, such as Dbd::mysql, Dbd::oracle, dbd::sybase or DBD::ODBC.First, the basic

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

1 Introduction1.1 General SQL Injection Technology OverviewThere is no standard definition of SQL injection technology, and the Microsoft China Technology Center is described in 2 ways [1]:(1) Script-injected attacks(2) Malicious user input used to