Summary of articles about the mysql_num_rows() function

This article collects 10 articles about the mysql_affected_rows() function and recommends it to everyone 1. PHP interview question 5 - MySQL database (basic part) mysql database download 64-bit sql database instance download sql database patch download introduction : Mysql database: PHP interview question No. 5 - MySQL database (basic part): mysql_num_rows() mysql_affected_rows() Both functions act on the results of the mysql_query($query) operation, and mysql_num_rows() returns the number of rows in the result set. mysql_affected_rows() gets the number of record rows affected by the previous MySQL operation. mysql_num_rows() is only valid for SELECT statements, to get the number of changed rows after INSERT, UPDATE or DE2. PHP updates mysql to get the number of changed rows_PHP tutorial introduction: PHP updates mysql to get the number of changed rows. A php update

1. mysql_affected_rows function definition and usage summary

##Introduction: This article collects 10 articles about the mysql_affected_rows() function, recommended to everyone 1. PHP interview question 5 - MySQL database (basic part) mysql database download 64-bit sql database instance download sql database patch Download introduction: Mysql database: PHP interview question No. 5 - MySQL database (basic part): mysql_num_rows() mysql_affected_rows() Both functions act on mysql_qu...

2 . 10 PHP examples recommended

##Introduction: The examples in this article share with you the The specific implementation code of login is for your reference. The specific content is as follows: exec_SQL($SQL); $total=mysql_num_rows($result); if($total==0){ DBClose(); Go_Msg("The registered user has not passed the management The username and password do not match! ","../default.html"); exit; }else{...

##3.

PHP mysql_num_rows() function definition and example usage demonstration

Introduction: PHP mysql_num_rows() function definition and usage Introduction Definition and Usage The mysql_num_rows() function returns the number of rows in the result set. Syntax mysql_num_rows(data) Parameter description: data Required. Result set. This result set is obtained from a call to mysql_query(). Description

4.

Use the mysql_num_rows() function to obtain the number of records in the result set row by row (PHP method seven for operating MySQL database)

#Introduction: In the previous articles, we introduced information about obtaining data in the result set, so today we will introduce to you how to obtain the number of records in the result set. If you want to get the number of records in the result set, you need to use the mysql_num_rows() function!

5.

php example source code to obtain all rows and columns in the mysql table

Introduction: This article introduces you to the source code of PHP to obtain all rows and columns in the mysql table. It mainly uses PHP database operation functions such as mysql_num_rows and mysql_fetch_row. This example will help you become familiar with PHP mysql. Friends who need relevant knowledge about database programming can refer to it.

6.

mysql_affected_rows and mysql_num_rows

## Introduction:: This article mainly introduces mysql_affected_rows and mysql_num_rows, for PHP Students who are interested in the tutorial can refer to it.

7. php interview question five - MySQL database (basic part) mysql database download 64-bit sql database instance download sql database patch download

Introduction: Mysql database: PHP interview question No. 5 - MySQL database (basic part): mysql_num_rows() mysql_affected_rows() Both functions act on the result of the mysql_query($query) operation, mysql_num_rows() Returns the number of rows in the result set. mysql_affected_rows() gets the number of record rows affected by the previous MySQL operation. mysql_num_rows() is only valid for SELECT statements. To obtain the INSERT, UPDATE or DE

8. background-repeat mysql_num_rows VS COUNT efficiency problem analysis

Introduction: background-repeat: background-repeat mysql_num_rows VS COUNT Analysis of efficiency issues: both mysql_num_rows and count(*) can count the total number, which one is better? Or when to use num_rows and count(*)? An intuitive comparison test data: Number of entries: 139764 Data table size: 500M Result: fetch_num_rows time: 35.272329092026 count(*) time: 0.071956872940063 If ​​

9. Red Alert 2 The Third Reich NO3 Third Reich Guestbook Making Process

## Introduction: Red Alert 2 The Third Reich: Red Alert 2 The Third Reich NO3 The Third Reich guestbook production process: //Display all messages $c $db=mysql_select_db("dbname",$conn); $numcolumns=8;//The number of records displayed on each page $query= "select *from guestbook"; $result=mysql_query($query); $allnums=mysql_num_rows($result);//Calculate the number of all records $numpage=ceil($al

10. mysql_num_rows VS COUNT efficiency problem analysis_PHP tutorial

Introduction: mysql_num_rows VS COUNT efficiency problem analysis mysql_num_rows and count(*) can count the total number. Which one is better? Or when to use num_rows and count(*)? An intuitive comparison test data: Number of entries: 13976

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