db2 decode

The usage of the DB2 DECODE function generally uses CASE when data is queried and conditional judgment is required... WHEN the condition is equal, in addition to the CASE... you can also use the DECODE function. If you want to use like,>,

first, according to the field content grouping; Less gossip. 1. Create a table T1:sql statement as follows CREATE TABLE T1 (ID integer NOT NULL primary key,Name varchar (10),Job varchar (10)); 2. Insert some data: INSERT into T1 values (1, ' Jack ', ' VP ');INSERT into T1 values (2, ' Tony ', ' CEO ');INSERT into T1 values (3, ' Merry ', ' VP ');INSERT into T1 values (4, ' Linda ', ' Operation ');INSERT into T1 values (5, ' James ', ' Operation '); Example: Statistics on the number of ' VP ' and

The use of decode in OracleDecode function usage in OracleMeaning explanation:Decode (condition, value 1, return value 1, value 2, return value 2,... Value N, return value N, default value)The function has the following meanings:IF condition = value 1 ThenRETURN (translation value 1)elsif condition = value 2 ThenRETURN (translation value 2)......elsif condition = value n ThenRETURN (translated value N)ELSERETURN (default value)END IFDecode (field or F

Delphi uses python to decode emails (reproduced) It is estimated that many people, like me, will not be able to handle many bugs when using Indy, and have to use and modify it. Recently, Indy has been used to send and receive emails, from D7 to d2007 to d2010. Later, an latest version of SVN was detected. It is surprising that some bugs have been fixed in the new version, it is frustrating that some new bugs have been introduced in the new version. A

standard type hierarchy-->sequences, There are some strings,unicode descriptions.As for Python code [python] view plain copy >>> z = u "i" >>> #这种代码, in fact nothing. >>> z.__class__ You see, this strange thing ...Later in the Windows XP, Pure Python command line tried, the conclusion is different, Z's result turned into U '/u6211 ', here should not be tested in Pyshell, there seems to be a lot of problems have not been understood clearly let's look at Encode,

Note:this is a companion problem to the System Design problem:design tinyurl. TinyURL is a URL shortening service where you enter a URL such as and https://leetcode.com/problems/design-tinyurl it returns a short URL such as http://tinyurl.com/4e9iAk .Design the and methods for the encode decode tinyurl service. There is no restriction on what your encode/decode algorithm should work. You just need to en

Oracle sorts specific information for a column [decode], oracle sorts decode In ORACLE queries, if there is no sorting, but you want to route the information of a specific value in a column to the front, use the decode (field, 'field value', number) of oracle) For example, if you want to forward the result of name = 'zhang san' to the front of all data queried

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."'',"; }Elseif(Is_null ($value)) {$valueStr=$valueStr."null,"; }Else{$valueStr=$valueStr."$value,"; } }$valueStr= substr ($valueStr,0, -1);$INSERTSQL="INSERT into public.".$tableName." (".$tableParams.") VALUES (".$valueStr.");"; Insertintodes ($dbDes,$INSERTSQL,Array()); } } }//parameter is the table name of the table to be guidedTransferdb ("Table name",$dbOri,$dbDes);?> '). addclass (' pre-numbering '). Hide (); $ (this). addclass (' has-numbering '). Parent (). appe

In the description CodeFirst, let's take a look at the overall module diagram of snort. In the decode module, data packets obtained from libpcap are converted to the Snort System definition, which facilitates the system to analyze the packet. According to the different protocol types in the IP header (ipproto_tcp, ipproto_udp, ipproto_icmp. During parsing, Snort records corrupted data, such as a packet header smaller than the specified size, and d

Analyze the causes of full DB2 Activity logs and solutions to full DB2 logs, db2 logs Log usage Displays the usage of logs under concurrent transaction conditions There are three concurrent programs: Process 1, Process 2, and Process 3. Each program has two transactions. Blue blocks represent SQL statements, red blocks represent commit operations, and green bloc

Tags: database DB2DB2 Zostalking about-DB2 LUWVSDB2 ZosOverview:you may have DB2 LUW knows a lot, but little is known about DB2 Zos(Big Machine operating system) because IBM 's internal data has always been relatively closed, especially for products we rarely see on the market, such as Zos Operating system, generally in the bank's internal staff and IBM employee

Http://hi.baidu.com/wader2006/blog/item/78406b60b51f8b47ebf8f8f0.html DB2 Common Command Set----DB2 maintenance 2007-09-09 10:10 in the DB2 development process, the whole development process also has a very important part of the work is the maintenance of the database, for the maintenance of a huge information system is very necessary; Leave a simple maintenance

Comparison of concurrency control (LOCK) between DB2 and Oracle Comparison of concurrency control (LOCK) between DB2 and Oracle 1 Introduction The minimal recovery and transaction units in relational databases (DB2, Oracle, Sybase, Informix, and SQL Server) are a transaction (Transactions). Transactions are ACID (atomicity, consistency, isolation, and durability

$ locked_object and all_objects views to show which objects are locked by which sessions: /* Showlock. SQL */Column o_name format a10Column lock_type format a20Column object_name format a15Select rpad (oracle_username, 10) o_name, session_id sid,Decode (locked_mode, 0, 'none', 1, 'null', 2, 'row share ',3, 'row Exclusive ', 4, 'share', 5, 'share Row Exclusive', 6, 'clusive ') lock_type,Object_name, xidusn, xidslot, xidsqnFrom v $ locked_object, all_o

Author: gnuhpcSource: http://www.cnblogs.com/gnuhpc/ 1. Level correspondence• Environment variables at the operating system level• The DB2 profile registry variables at the operating system and instance levels• The Database Manager (DBM) configuration file at the instance level• The Database (db) configuration file at the database levelThe DB2 environment consists of the following parts:1)

Many technicians can easily discuss the details of DB2 technology and confidently talk about query parallelism, data compression, WebSphere MQ integration, large object management, JDBC and ado.net drivers, data sharing on mainframe Parallel Sysplex, DB2 for Lin UX, Unix, and Windows (LUW) multidimensional clusters, and so on. But what happens if the person who talks is a member of the management? The main

DB2 obtains detailed information about the current user table, field, index, and so on. db2 current user Obtain detailed information about all tables, fields, and indexes. SELECT d. name tbName, COALESCE (d. remarks, '') tbDesc,. name columnName,. coltype columnType, decode (. nulls, 'y', '1', '0') notNull, decode (.

DB2 Vs MySQL series | comparison of data types between MySQL and DB2, db2mysql As MySQL Databases become more and more widely used, there are more and more demands for migration from DB2 to MySQL databases. During database migration, the first and most basic and most important thing is the conversion between the two database data types. Related reading: Fr

DB2 joint database is a special form of distributed database management. In the federated database system, you can use an SQL command to send command requests to multiple data sources. Before remote replication between DB2 and non-DB2 databases, ensure that non-DB2 data sources can be accessed by the