update column from another table sql

Reference article: http://blog.csdn.net/tianlesoftware/article/details/4704858Multi-line turn string This is relatively simple, with | | Or the CONCAT function can be implementedSelect Concat (id,username) str from App_userselect id| | Username Str from App_userString to multi-column is actually the problem of splitting the string, you can use the SUBSTR, InStr, Regexp_substr function modeString to multiple linesUse UNION ALLfunctions and other method

: Item Source System Target System Platform Red Hat EnterpriseLinux Server release 5.4 Red Hat EnterpriseLinux Server release 5.4 Hostname Gc1 Gc2 Database Oracle 10.2.0.1 Oracle 11.2.0.1 Character Set ZHS16GBK ZHS16GBK ORACLE_SID PROD EMREP Listener Name/Port LISTENER/1521 LISTENER/1521 Goldengate User Ogg Ogg 1. Simulate the experiment environment so that gc1 and gc2 dat

Label:Originally found using the clustered index primary key, confirming that it is not a primary key problem, is a clustered index problem. Version:microsoft SQL Server R2 (SP1) -- Create a test table - drop table [testtable] Create table [dbo].[ TestTable] ( [id] [int] NOT NULL, [name] [varchar] (a) NOT null ) go

Tags: max SELECT statement SQL ORA--explain style ble1. A B C is in the table three columns, with SQL Statement implementation: When a column is greater than B Select a When column column otherwise select B

primarily queried from the middle table, and the following versions of SQL SERVER2005 can be done using aggregate functions.2.1 Row to column syntaxTable_source PIVOT ( aggregate function (value_column) for pivot_column in ( column_list>) )2.2, using pivot to achieve withT as ( SELECT 1 asId'Test Team 1'TEAM,' Men'ITEM, theCENTUNION SELECT 1 asId'

Tags: SQL row-to-column column changing careers650) this.width=650; "Src=" https://s3.51cto.com/wyfs02/M01/91/85/wKioL1j2vuCiSTLcAAAsXjQIOLM136.jpg-wh_500x0-wm_ 3-wmp_4-s_1989208398.jpg "title=" qq picture 20170419093438.jpg "alt=" Wkiol1j2vucistlcaaasxjqiolm136.jpg-wh_50 "/>Title: There is an EMP, there are two fields: Name,chengji has three records, respectivel

An identity column in SqlServer2012 has an attribute:When the server restarts, the identity column defined as int automatically adds 1000 to the original maximum value. For example, your original self-increment column of the maximum value is 2, then you restart after inserting a piece of data into the table, your self-

An error occurred while creating the table. [Err] 1293-Incorrect table definition; there can be only one timestamp column with current_timestamp in default or on update clause The creation statement is as follows: CREATETABLEcompany_news(idVARCHAR(32)NOTNULL,titleVARCHAR(50)NOTNULL,summaryVARCHAR(300),contentTEXT,compa

Extract running pora_1 00:00:00 00:00:05 Replicat stopped rora_1 00:00:00 00:00:01 GC2: SQL>Update tcustmer set cust_code = 'new' wherename = 'Rocky flyer Inc. '; -- updata operation on GC2 SQL>Commit; SQL>Select * From tcustmer where cust_code = 'new '; Cust_code name city ST -----------------------------------------

When it comes to statistics, it is often a problem to change rows and columns. Case when mode is too cumbersome, and scalability is not strong, you can use Pivot,unpivot to quickly achieve row to column, column change, and Scalability strongFirst, row to column1. Test data PreparationCREATE TABLE [Studentscores]( [UserName] NVARCHAR( -),--Student Name

Extract running PORA_1 00:00:00 00:00:05 Replicat stopped RORA_1 00:00:00 00:00:01 Gc2: SQL>Update TCUSTMER set CUST_CODE = 'new' WHERENAME = 'Rocky flyer inc. '; -- updata operation on gc2 SQL>Commit; SQL>Select * from TCUSTMER where CUST_CODE = 'new '; CUST_CODE NAME CITY ST -----------------------------------------

Mysql stored procedure: copying A column of Table A to table B is A stored procedure, copy the value of the avalue column in table A to the bvalue column in table B (assume that both ta

', 中文版 as 'Achievements' from#T1) TOrder byT. NameWorkaround Two--The static scheme of a career change: unpivot,sql2005 and later versions -- method Two; This method automatically removes values that are null SELECT Name,obj,grade from #T1 for inch as UpThis method is also popular on the internetInformation_schema. The columns view gets the columns to construct the rows, and the XML processing is also used.2 Row careerSimple exampleCREATE TABLE