Shulou(Shulou.com)05/31 Report--

This article mainly explains "how to improve the query efficiency of MySQL database". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to improve the query efficiency of MySQL database".

Use statement for binding queries

Using statement, you can build a query syntax tree in advance and query directly without building a syntax tree. Therefore, it can improve the efficiency of the query. This method is suitable for situations where the query condition is fixed but the query is very frequent.

Insertbind [4] .buffer _ type=MYSQL_TYPE_SHORT

Insertbind [4] .buffer = (char*) & mresolstInsertParam-> externalPort

Insertbind [4] .is _ null=0

Insertbind [4] .length = 0

Insertbind [5] .buffer _ type=MYSQL_TYPE_LONG

Insertbind [5] .buffer = (char*) & mresolstInsertParam-> internalIP

Insertbind [5] .is _ null=0

Insertbind [5] .length = 0

Insertbind [6] .buffer _ type=MYSQL_TYPE_SHORT

Insertbind [6] .buffer = (char*) & mresolstInsertParam-> internalPort

Insertbind [6] .is _ null=0

Insertbind [6] .is _ null=0

/ / bind

If (mysql_stmt_bind_param (massistInsertStmt insert bind))

Returnfalse

Returntrue

}

What are the skills to improve the query efficiency of MySQL database

/ / 2. Query

BoolCDBManager::InsertHostCache2 (MYSQL*connecthandle,char*sessionid,char*channelid,intISPtype,\

UnsignedinteIP,unsignedshorteport,unsignedintiIP,unsignedshortiport)

{

/ / populate the structure variable m_sInsertParam

Strcpy (massistInsertParam-> sessionid,sessionid)

Strcpy (massistInsertParam-> channelid,channelid)

MaxstInsertParam-> ISPtype=ISPtype

MaxstInsertParam-> externalIP=eIP

MaxstInsertParam-> externalPort=eport

MaxstInsertParam-> internalIP=iIP

MaxstInsertParam-> internalPort=iport

/ / execute statement, at the performance bottleneck

If (mysql_stmt_execute (m_stInsertStmt))

Returnfalse

Returntrue

}

Thank you for your reading, the above is the content of "how to improve the query efficiency of MySQL database". After the study of this article, I believe you have a deeper understanding of how to improve the query efficiency of MySQL database. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.