Tags: sele centos6.5 nlog Access firewall Vertica eset empty spanFirst, the environment1 6.5 2 5.6. - 3 Host A:192.168. 1.1 (Master) 4 slave B:192.168. 1.2 (Slave) 5 slave B:192.168. 1.3 (Slave)Second, the basic Environment configurationMySQL is accessed via port 3306, so make sure the firewall is on for Port 3306.Third, the configuration of master1 , configuration my.cnfIn the Linux environment, the location of the MySQL configuration file is in/etc
Employees outerWHERE EXISTS (SELECT ' X 'From EmployeesWHERE manager_id =OUTER.EMPLOYEE_ID);Problem: Querying the Departments table, the department_id and department_name of departments that do not exist in the Employees tableSELECT department_id, Department_nameFrom Departments DWHERE not EXISTS (SELECT ' X 'From EmployeesWHERE department_id= d.department_id);Vi. 1. Related updates: Update data for another table using related subqueries based on data from one tableUPDATE table1 ALIAS1SET colum
Tags: specific evel row data format eset SYN problem Zha gesOne: three types of MySQL logs: Statement, row, mix format. It is recommended to use row format. How to set your own log format? 1.set globle binlog_format=‘MIXED‘ 2、vi /etc/my.cnf 1 Statement:Pros: No need to record changes in each row, reduce the Binlog log volume, save IO, improve performanceCons: Because the records only execute statements, in order for these statements to run correctly o
Tags: roc and out str ssh read_only eset/etc grepFirst look at the password that caused the problem, including two special characters [and ~.$ Egrep-w ' User|password '/etc/masterha/app1.cnfpassword=p[ai3m~5zUser=mha_mgrThe role of user mha_mgr, as described in the following document, shows its role in managing the database instance.MySQL Administrative database username to the target MySQL server. This should is root because it runs all necessary adm
Tags: parameter usage eset Mobile Save directory Buffere length dataToday to learn from a peer download source code, which met two small problems, the internet carried out Baidu, found the answer, readily recorded, so that in the future to look over. 1. First customize a file download of the main interface, including the creation of tasks, pause tasks, continue tasks, delete tasks, click to create a task need to pop up a jframe jfilechooser, file sele
Tags: LTE sch data keep Eset Date Time system Ros--Login RmanRman Target/Rman Target Sys/passworkRman Target sys/passwork nocatalog (control file mode)Rman Target sys/passwork Catalog (Restore directory mode) --View parametersShow All --Modify Save DaysChange the number of days that backup information is retained in the control file with SqlplusShow Parameter Control_file_record_keep_time Alter system set CONTROL_FILE_RECORD_KEEP_TIME=30 Scope=spfileS
, Department_nameFrom Departments DWhere NOT EXISTS (SELECT ' x 'From Employeeswhere department_id = d.department_id);Related updateUpdate data for another table using related subqueries based on data from one table.Update table1 alias1 Set column = (select expression from Table2 alias2where alias1.column = Alias2.column);Table EMPL6 for violating the Paradigm Add Field Storage Department name (after adding field violates paradigm)Populating a table with related child updatesALTER TABLE EMPL6 Ad
Tags: ble work where rule eset drop alter default groomingWith the following rules, if the data table is changed, all caches associated with the data table will be invalidated and deleted. "Data table Changes" Here include: INSERT, UPDATE, DELETE, TRUNCATE, ALTER table, drop table, or drop database. For example, if the data table posts access frequently, it means that a lot of its data will be the QC cache, but every time the posts data table updates,
),--educationDegree VARCHAR2 (20),--degree);--Use the class above to construct the employee tableCREATE TABLE T_emp(Eid varchar2 () not NULL,Person Ty_person,Job Ty_job,Sal Ty_sal,Edu ty_edu,Extcol VARCHAR2 (50),Extcol2 VARCHAR2 (50),Extcol3 VARCHAR2 (50),Extcol4 VARCHAR2 (50),EXTCOL5 VARCHAR2 (50));--extcol represents an extended fieldThe basic operations of the class are described below:1. Adding data using constructorsInsert into T_emp (Eid, person,job,sal,edu, Extcol,extcol2,extcol3, EXTCOL4
hlsearchset number "window size set lines=35 columns=140" The split window is located at the bottom of the current window/right set Splitbelowset splitright "Do not show tools/menu bar set Guioptions-=tset guioptions-=mset guioptions-=lset Guioptions-=rset guioptions-=b "Use the built-in tab style instead of Guiset guioptions-=eset nolist" Set listchars=tab:?\, Eol:?,trail:, Extends:>,precedes:Note: Above the Chenglee, Chenglee is my color schemeColo
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