about mysql

I'm sorry to disturb everyone on Sunday, but I am in a hurry ...... PHPcode $ querymysql_query (& quot; select * fromuserwhereid]} & quot;); while ($ resultmysql_fetch_array ($ query) {echo $ r on Sunday, sorry, but I am in a hurry ...... About

Basic concepts about MYSQL indexes: bitsCN.com 1. what is an index? Indexes are used to quickly search for records with specific values. all MySQL indexes are saved as B-trees. If no index exists, MySQL must scan all the records of the entire table

A few days ago, a friend of the forum posted a question about MYSQL error echo.Error message: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '\', 8' at line 1I

In fact, there have been many articles about mysql injection on the Internet ~ But there is still a lack of emphasis ~ Use into outfile to write the code to the web directory and obtain WEBSHELL.First, three innate conditions are required. ① Know

MySQL Getting Started 1, Database Basics (Understanding) 1.1, Database Introduction 1.1.1, what is a database? What is the role of the database?The database is the warehouse that stores the data, its essence is a file system, the data is stored in

I'm sorry to disturb everyone on Sunday, but I am in a hurry ...... PHPcode $ querymysql_query (& quot; select * fromuserwhereid]} & quot;); while ($ resultmysql_fetch_array ($ query) {ech is sorry to disturb you on Sunday, but it's really anxious ..

For Mysql and gd library loading problems, what is the connection between mysql and php we have installed ,, there is also why we can use the gd library without installing the gd library but only need to open the gd Library, and, why does one need

For some minor questions about the mysql database and php, please advise me that there are 20 pieces of data in the mysql database. However, only 16 pieces of data are displayed on my php webpage, I want to ask, why ?, The post code is king.

About Mysql triggers !! When I create A trigger in the insertA table, I also add some values of related fields in table A to Table B. The IDs in Table A are automatically increased and primary keys, this id value should be placed in the lid int

About MySQL Add data INSERT into Roomid,name,id1,id2 values (' 1 ', ' 232 ', ' $_post[id1] ', ' $_post[id2] ') $_POST[ID1],$_POST[ID2] Pass over is the value, not the ID, how to deal with it here? ------Solution-------------------- $_POST[ID1],$_

SQL Study Notes (19) ----------- about MySQL database optimization and mysql database Optimization A mature database architecture is not designed with high availability, high scaling, and other features at the beginning. It is gradually improved

About mysql stored procedure creation dynamic table name and parameter processing, mysql Stored ProcedureReprinted please indicate the source: curtain roll west wind column (http://blog.csdn.net/ljxfblog) Recently, the game started its second

For more information about mysql configuration, see mysql4.1.14. phpmyadmin is 4.0.5. this error is always prompted after phpmyadmin is installed. Ask Why Reply to discussion (solution) I checked the information online and said it was an import

About MySQL data save with UTF8 encoding saved, some data search not to My Web page is UTF8 encoded, so I added mysql_query ("Set names ' Utf-8 '") when I saved the data; MySQL organized into a utf8_general_ci While I was searching for data, $so

Asking for help, about MySQL. This code has been engaged for an afternoon, ask the great God to see if the code has a problem Tested to properly connect the database is the while loop condition $row = mysql_fetch_array ($result) This sentence

About MySQL Query and page display Dear God, This is the case, now to read the information about the product from the database, and then a product may correspond to a plurality of origin, each origin has the name of the origin, if a product has more

Ask for questions about MySQL queries high scores I. Structure of the data table: 1. Main Table Invoice: Field: Invoicecode invoicedate partnercode Programcode ... IN2007031001 2007-03-04 ICBC AA ... IN2007031002 2007-03-05 ICBC BB ... IN20

Ask the simple question about MySQL mysql_select_db (' Baidu '); mysql_query ("DELETE from ' clicked ' WHERE date mysql_select_db (' baidu1 '); mysql_query ("DELETE from ' clicked ' WHERE date mysql_select_db (' baidu2 '); mysql_query ("DELETE from '

Questions about MySQL triggers!! I built the trigger In the Insert a table, at the same time to the B table to add some values of the related fields, The ID in table A is automatically growing and is also the primary key, This ID value is

MHA is currently a relatively mature solution for MySQL high availability, developed by the Japanese Dena company Youshimaton, and is an excellent set of highly available software for failover and master-slave upgrading in MySQL high-availability