10 recommended articles about the statement collection

The following editor will bring you a summary of the special processing statements of mysql's sql statements (must read). The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor to take a look. 1. Update the entire table. If the value of a column in a row of data is empty, then make it equal to the value of another column field UPDATE ot_tgbz set update_day=if(update_day is null, date, update_day); 2. Update the entire table. If a field is greater than 2, update them all to 2; UPDATE ot_user set xingyun_num=if(xingyun_num > 2,2,xingyun_num); 3. Put the shop_goods in the table Replace all URLs containing http://www.jb51.net/ in the thumb field with empty ones. update&nb

1. Example tutorial on processing special sql statements in mysql

Introduction: The following editor will bring you a summary of the special processing statements of mysql's sql statements (must read). The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor and take a look

2. MySQL statement collection: creation, authorization, query, modification

Introduction: 1. User creation, permissions, deletion 1. Connect to MySql Operation connection: mysql -h host address -u username -p user password (Note: u No need to add spaces to root, and the same applies to others) Disconnect: exit (Enter) to open cmd...

3. Oracle query statement collection (oracle basic command collection 1)

Introduction: This article mainly introduces Oracle query statements, which will help novices quickly become familiar with them. The basic syntax of ORACLE helps novices quickly become familiar with the basic syntax of ORACLE. Friends who need it can save it

4. MYSQL Classic Statement Collection - Improvement Chapter

Introduction: Summary: Complete collection of MYSQL classic statements - improvement...

5. MYSQL Classic Statements - Skills

##Introduction: Summary: There are as follows In the table, it is required to frame all the failed grades, and make them just pass on the basis of an increase of 0.1 each time: ...

#6. MYSQL Classic Statement Collection ——Development Chapter

Introduction: Summary: Complete Collection of MYSQL Classic Statements——Development Chapter...

7. MYSQL Classic Statement Collection - Basics

Classic SQL Statements

PHP implements a complete instance of MYSQL statement generation through parameters. Mysql sql statement length limit. Mysql sql statement collection. Mysql sql statement optimization.

Introduction: Mysql, sql statement: Complete example of generating MYSQL statement class through parameters implemented by PHP: This article describes the example of generating MYSQL statement class through parameters implemented by PHP. Share it with everyone for your reference, the details are as follows: This class can create SELECT, INSERT, UPDATE and DELETE statements through specified table and field parameters. This class can create WHERE conditions of SQL statements, such as LIKE query statements, using LEFT JOIN and ORDER statements

10. English Sentence Collection PHP+MySQL Manual Injection Statement Recommendation

Introduction: English Sentence Collection: English Sentence Collection PHP+MySQL Manual Injection Statement Recommendation: Violent field length Order by num/*matching field and 1=1 union select 1,2 ,3,4,5…….n/*exploit field position and 1=2 union select 1,2,3,4,5…..n/*use built-in function to expose database information version() database() user( ) No need to guess the available fields and database information (some websites are not applicable): and 1=2 union all select version()

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