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Learning from MySql stored procedure _ MySQL

MySql learning experience-the stored procedure first look at the mysql Query article Reply statement: # Query article replies-------------------------------- Procedure structure for 'sp _ select_reply_article'------------------------------Drop

What is the role of MySqldelimiter _ MySQL

What is the role of MySqldelimiter? bitsCN. comMYSQL after exporting an SQL statement: DELIMITER $ Drop trigger if exists 'updateegopriceondelete' $ CREATE TRIGGER 'updateegopriceondelete' after delete on 'mermerinfo' FOR EACH ROW BEGIN Delete from

Csharp: MySQL Stored Procedure using DAL, csharpstored

Csharp: MySQL Stored Procedure using DAL, csharpstored # Create a table: 20160907 drop table attendrecord; create table attendrecord (seq int not null primary key AUTO_INCREMENT, emp_no varchar (20) null, rdate datetime not null, rtime time not null,

Php implements simple ACL.

Copy codeThe Code is as follows:-- ACL Tables-- Table structure 'aclresources'Drop table if exists 'aclresources ';Create table if not exists 'aclresources '('Rsid 'varchar (64) not null,'Access' int (4) not null default 0,'Desc' varchar (240) not

ThinkPHP3.2.3 the use of Auth.class.php in the full version

First, create a data table1, Think_auth_rule, rules tableID: Primary KEY,Name: Rule Unique identification,Title: Chinese name of the ruleStatus: 1 Normal, 0 disabled,Condition: Regular expression, NULL indicates existence on validation, non-null

SQL note [SQL judgment exists] [long-term update] (-2015.4)

--Determine if a stored procedure existsif exists(Select* fromsysobjectswhereid = object_id (N' [p_createtable] ') and OBJECTPROPERTY (ID, N' Isprocedure ') = 1) Drop procedure[P_createtable]--Create procP_createtable-- as--Create TableTUser (CID

I wrote my own chat room source code (i)

/* Table Structure Design * * /* Microsoft SQL server-scripting * * * SERVER:SQL2 * * * Database:chat * * /* Creation Date 00-4-28 12:55:20 * * /* dbo:chat*/ /* dbopassword:chat001*/ /**/ /* User Action form * * if exists (SELECT * from

SQL Server database Building, table building, constraint techniques _mssql

Below to share the next SQL Server Building, building tables, building constraints skills, the following text has code. --Before creating a school database: First, determine if the database exists, delete it if it exists, and create it if it does

MySQL Database (5)--"reprint" MySQL Exercises

Original address: http://www.cnblogs.com/wupeiqi/articles/5748496.htmlSample Data sql:/* Navicat Premium Data Transfer source server:localhost Source Server type:mysql Source server Version:5 0624 source Host:localhost source Database:sqlexam

mysql--Sub-table

MySQL sub-table scene analysis and simple sub-table operationWhy do you want to divide tablesFirst of all to know what the situation, only need to divide the table of individuals feel that the number of single-table records to the million to tens to

MySQL Command collection

1. mysql commands the user to connect to the databaseMySQL command format: mysql-h host address-u user name-P user password(1) Connect to MySQL on this computerFirst open the DOS window, then enter the directory Mysql\bin, and then type the command

"Database" MySQL from install to command

One, MySQL is installed in the configurationI was through the way Baidu cloud disk download. Recommended login Baidu Cloud Terminal, and then click the link below, select the version to install, unzip the installation.Http://www.h2ero.cn/pan/share/17

MySQL Summary Chapter 2 (17.6.27)

First, the View1. What is a view, function;A: Get a select result, and generate a new virtual table, and then you can continue to work on this new table;Note: When the old table data is updated, the virtual table data is updated as well;  2.

MySQL Trigger Simple instance

Three after triggersDROP TABLE IF EXISTS tab1;CREATE TABLE Tab1 (tab1_id varchar (11),Tab1_name varchar (11),Tab1_pass varchar (11));DROP TABLE IF EXISTS tab2;CREATE TABLE TAB2 (tab2_id varchar (11),Tab2_name varchar (11),Tab2_pass varchar

accp8.0 Conversion Textbook The 2nd chapter of the first knowledge of MySQL

Install MySQL First:A. Word part:①networking network ②option Select ③port Port ④firewall firewall ⑤engine engine⑥standard Standard ⑦character character ⑧collation Proofing ⑨stirage StorageCreate drop Delete Comment Comment variables variableTwo.

A colleague's summary of Hivesql optimized hive is to generate a string resolution that conforms to the SQL syntax that can be executed on Hadoop by M

A colleague summarizes the hive SQL optimizations Hive is a tool that generates a string resolution that conforms to SQL syntax to generate mapreduce that can be executed on Hadoop. Using hive to design SQL as many of the features of distributed

SQL judgment function exists, SQL judgment table exists, SQL determines if stored procedure exists, SQL Judge view exists

--whether the database existsIF exists(SELECT * fromMaster.. sysdatabasesWHEREName=N'Library name')PRINT 'exists'ELSE PRINT 'Not exists'-----------------determine if the name of the table to be created existsIF exists(SELECT *

Summary of common SQL statement Daquan

Source: http://www.cnblogs.com/0351jiazhuang/p/4530366.htmlSQL is (structured query Language) Structured Query language abbreviation, the following Zhao yiming essay blog from the Basic knowledge, judgment object and application skills, introduced

Triggers in MySQL

What is a triggerSimply put, a table has something (INSERT, delete, update operation), and then automatically trigger the execution of several pre-written SQL statements;Features and functionsFeatures: The action that triggers the event and the SQL

Tree-shaped Database design

database table schema design of tree-shaped structureIn the process of programming, we often use the tree structure to characterize some data related relations, such as enterprise subordinate departments, column structure, commodity classification,

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