update column from another table sql

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Summary of SQL statements for Oracle row-to-column, column-changing

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

(5) modify the column value on the primary key. The update operation is split

: 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

SQL Server clustered index rebuilds post-transform column location statistics column name unchanged

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

Oracle---------the largest column in a value two column in SQL

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

Do chart statistics you need to master SQL Server row to column and column career

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'

SQL row-to-column, column-changing methods

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

Identity column Auto-grow issue (SQL Server, identity, column Value jump Issue)

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-

There can be only one timestamp column with current_timestamp in default or on update clause

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

Example (5) modify the column value on the primary key. The update operation is split into two statements.

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 -----------------------------------------

Row-to-column (PIVOT) and column-changing for SQL (UNPIVOT)

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

Example (5) modify the column value on the primary key. The update operation is split into two statements.

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: copy A column of Table A to table B

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

Problems with row-to-column and column-changing in SQL

', 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

Use the JS method to merge the cells in the table table that specify the same contents in the row specified by the column.

= = tb.rows[i + 1].cells[col].innerhtml) { + varsame =true; - //The loop is judged by all of the previous sibling data rows + for(varj = col; J > 0; j--) { A if(tb.rows[startrow].cells[j-1].innerhtml! = tb.rows[i + 1].cells[j-1].innerhtml) { atsame =false; - Break; - } - } - //if the previous sibling data rows have the same values, the cell is merged - if(true==same) { i

ALTER TABLE DROP column failed because one or more objects accessed this column.

SQL Server in the deletion of constrained columns the basic processing method 1. First, you need to delete the key associated with the constraint 2. Delete field Delete constraint statement: ALTER TABLE drop constraint constraint name or key go Delete field statement ' ALTER TABLE table drop

SQL row to Column PIVOT column career UNPIVOT

Tags: style blog http color ar using SP for strongOriginal: SQL row to Column PIVOT column career UNPIVOTOne:Existing table one (T_TABLE1), want to convert to table two (t_table2) format.Table I: year company revenue

MySQL how to properly change a large table structure (Alter table structure of a single column

Label:MySQL how to properly change a large table structure (Alter table structure of a single columnHttp://blog.sina.com.cn/s/blog_445e807b0101egpf.htmlFound on the Internet a very helpful three-paragraph script, posted for reference, readers, make a note:## Script 1# Alter table Structure of a single column of a large

The table column in Oracle is changed from VARCHAR2 type to CLOB

already exists for this column. This method cannot be used. Otherwise, such as the following error is reported: ALTER TABLE Tb_with_data Modify description long;--change columns that include data SQL Error:ora-01439:column to be modified must is empty to change datatype 01439.00000- "

Hibernate column shoshould be mapped with insert = "false" update = "false" error cause

Shocould be mapped with insert = "false" update = "false "-// Hibernate/hibernate mapping DTD // en"Http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd>Name = "sysloglogstack"Table = "syslog_logstack">Name = "ID"Type = "integer"Column = "logstack_id">Name = "targetid"Column = "target_id"Type = "integer"

Error code:1175 You is using Safe update mode and you tried to update a table without a WHERE that

Reprinted from:http://blog.csdn.net/amohan/article/details/9980315 Fast and Efficient use: SET sql_safe_updates = 0; don't look at it! When you use MySQL Workbench to perform a database management update today, a statement that executes an update encounters the following error message: Error code:1175 You is using Safe update mode and you tr

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