A trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by events that are automatically invoked to execute. Stored procedures can be invoked by the name of the
instance 1, get the version of MySQL
To install the MySQL module in the Windows environment for Python development, see my other article:
Mysql-python Windows exe installation file download
#-*-Coding:utf-8-*-
#安装MYSQL DB for Python
import mysqldb
Concept Description
The Oracle database is divided into the national character set (character set) and the database character set (db character set). Both are set when you create the database. The national character set is mainly used for nchar,
Start MongoDB server: sudo service mongod start or Sudo/usr/local/mongodb/bin/mongod--config/etc/mongodb.confStop MongoDB service side: sudo service MongoDB stopQuerying the MONGODB Server Status command query statusPs-ajx|grep Mongod or sudo
String TypeSet/get is the most common and simplest operation. Key value pair;
[Plain]View plain copy 192.168.159.130:7000> set num 1 OK 192.168.159.130:7000> get num "1" 192.168.159.130:7000> ; Get Age (Nil)
SETNX differs from set if the key value
Preliminary incremental recovery of MySQL data A. Configuring the MY.CNF configuration fileRename the Log-bin parameter in the MY.CNF configuration file to MYSQLBIN_ZBF first, so that updating a thing in the MySQL database will be updated in this
The project used to MongoDB, the basic is to use Robomongo to connect the server, do some of the lower permissions to delete and change the operation. Commands often forget to record some of the most frequently used commands for collections for easy
First, the problem description:The field nvarchar type in the database holds the following data:' 3.3x10 'Second, the solution:--Test CasesCREATE TABLE #temp(NAME NVARCHAR () null)INSERT into #temp select Fecalcoliform from waterqualitySELECT * FROM
Db.getcollection ('Product').Update({Status: "Offline"},{$Set: {status: "Online"}},false,true) update, change all status offline to online, note quotes db.collection.Update(criteria, objnew, Upsert, Multi) The description of the four parameters is
Essay from:http://www.cnblogs.com/hoojo/archive/2011/07/20/2111316.htmlA trigger is like a small ledger that records what you did in the database, either created or deleted. Everything you do will touch the trigger.A trigger is a special type of
A trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by an event that is automatically invoked to execute. The stored procedure can be called by the name of the
A trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by an event that is automatically invoked to execute. The stored procedure can be called by the name of the
The content is excerpt from http://www.cnblogs.com/hoojo/archive/2011/07/20/2111316.html, only for the use of their own notesA trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are
Tag: style io ar os SP for data on problemA trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by an event that is automatically invoked to execute. The stored
SQL Server triggersA trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by an event that is automatically invoked to execute. The stored procedure can be called
A trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by an event that is automatically invoked to execute. The stored procedure can be called by the name of the
SQL Server triggersA trigger is a special type of stored procedure that differs from the stored procedure we described earlier. Triggers are triggered primarily by an event that is automatically invoked to execute. The stored procedure can be called
An in-depth analysis of the entire UPDATE process from birth to death is a question that a brother of Oracle once asked me. Some people later asked me this question: use ORACLE Internal principles to describe the following processes: 1. sqlplus
I. Overview Abstract Factory: provides an interface for creating column-related or interdependent operations without specifying their specific classes. Abstract Factory mode is the most abstract and general factory mode in all forms. Abstract
SQLServerProfiler is used to monitor and analyze deadlocks in two or more SQLServer processes. When a process locks the resources that other processes attempt to lock, a deadlock occurs. For example, the process process1 holds one exclusive lock (X)
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