db2 coalesce

It is not recommended to use control center tools and DB2 Management Server (DAS) From version 9.7, it is not recommended to use the control center tool and DAS, which may be removed from future releases. Now a newGUI tool kit for managementDB2LinuxAndThese tools can be used for Windows data and data-centric applications.Details The following control center tools and related functional components are not recommended: Activity monitor Command Editor

Fast-changing application environments require a flexible mechanism for storing data and passing data between different application tiers. As it turns out, JSON (Java Script Object notation) is an important technology for moving, interactive applications that reduces the overhead of pattern design and eliminates the need for data conversion. DB2 NoSQL JSON enables developers to write applications using the JSON-oriented popular query language created

DB2 Stored Procedure attribute description, db2 stored procedure description ProcedureName: name of the stored procedure. It cannot exist in the same database mode. Stored Procedure with the same name and number of parameters, even if the parameter type is different (In | out | inout paramName dataType ,...) : Input parameters In: input parameter, out: output parameter, inout: As input and output parameter

table, for example: create table t1 (C1 int not null, C2 timestamp default current timestamp) This is NOT allowed for 5, some built-in functions expect () CHAR (), INTEGER (), TO_CHAR () TO_DATE () CHAR (date, FN) TO_DATE () 6, Public Synonyms (Public Synonyms) Oracle: Oracle supports Public Synonyms DB2: DB2 does not support Public Synonyms 7, date/TimeOracleDB2SYSDATECURRENT DATECURRENT TIMESTAMPDT1 + 2A

): the number of seconds between midnight and arg. Monthname (arg): returns the month name of arg. Dayname (arg): returns the week of arg. Common examples: Returns the current system time. Oracle: select sysdate from dual; DB2: select current date from sysibm. sysdummy1 Returns the next day of the current time) Oracle: select sysdate, sysdate + interval '1' day from dual; DB2: select current date + 1 day fr

. ISORDERSUBMITDATE; Create function sxfm. ISORDERSUBMITDATE (IN_ROW_ID DECIMAL (16, 0 )) RETURNS DATE LANGUAGE SQL Begin atomic declare V_SUBMIT_DATE DATE; DECLARE V_SELL_ID DECIMAL (16, 0 ); DECLARE V_BUY_ID DECIMAL (16, 0 ); Set V_SELL_ID = (select coalesce (RECEIVE_ID,-1) FROM IS_ORDER WHERE ROW_ID = IN_ROW_ID ); Set V_BUY_ID = (select coalesce (PAY_ID,-1) FROM IS_ORDER WHERE ROW_ID =

)) RETURNS DATE LANGUAGE SQL Begin atomic declare V_SUBMIT_DATE DATE; DECLARE V_SELL_ID DECIMAL (16, 0 ); DECLARE V_BUY_ID DECIMAL (16, 0 ); Set V_SELL_ID = (select coalesce (RECEIVE_ID,-1) FROM IS_ORDER WHERE ROW_ID = IN_ROW_ID ); Set V_BUY_ID = (select coalesce (PAY_ID,-1) FROM IS_ORDER WHERE ROW_ID = IN_ROW_ID ); Set V_SUBMIT_DATE = (select date (MAX (A. SUBMIT_DATE) FROM AM_AUDIT_QUEU

Http://www.jb51.net/list/list_155_1.htm 1. Open the command-line window #db2cmd2. Open the control center# Db2cmd DB2CC3. Open the Command editorDb2cmd Db2ce===== Operation Database Command ===== 4. Start the DB instance#db2start 5. Stop the DB instance#db2stop If you cannot stop the database due to the active connection, execute DB2 force application before running db2stop all to/db2stop force6. Create a database#

1. Open the Command Line window#db2cmd2. Open the control center# Db2cmd DB2CC3. Open the Command editorDb2cmd Db2ce===== Operation Database Command =====4. Start the DB instance#db2start5. Stop the DB instance#db2stopIf you cannot stop the database due to the active connection, execute DB2 force application before running db2stop all to/db2stop force6. Create a database#db2 Create DB [dbname]7. Connect to

1. Open the Command Line window#db2cmd2. Open the control center# Db2cmd DB2CC3. Open the Command editorDb2cmd Db2ce===== Operation Database Command =====4. Start the DB instance#db2start5. Stop the DB instance#db2stopIf you cannot stop the database due to the active connection, execute DB2 force application before running db2stop all to/db2stop force6. Create a database#db2 Create DB [dbname]7. Connect to

Label:DB2 default need to switch to db2inst1 this default user to perform the action [Email protected] instance]# Su-db2inst1 [Email protected] ~]$ Db2start [Email protected] ~]$ DB2 force application All [Email protected] ~]$ Db2stop [Email protected] db2]$ db2stop force Show All instances[Email protected] ~]$ db2ilist Displays the current instance[[Email protected] ~]$

DB2 + HADR + TSA high availability test-TSA environment configuration. DB2 + HADR + TSA high availability test-TSA environment configuration all node names and Hosts files [root @ db2-node01 ~] # Moreetcsysconfignetworkingyesnetworking_4876yeshostnamedb2 DB2 + HADR + TSA high availability test-TSA environment configura

This article mainly describes the actual operation process of the DB2 linked list storage process. In actual operations, we generate a linked list based on the T_depbal account balance table and transaction flow meter. In the zipper table, the start date is and the end date is 2050-12-31. Create a table createtableT_depchg ( ACCOUNT_NOint, START_DATEDATE, ENT_DATEDATE, BALANCEdouble, AVG_BALdouble ) CREATETABLET_DEPBAL

allowed to be empty, you can use COALESCE (InputParameter, ') to convert null to ';input type is integral type, and allowed to be empty, you can use COALESCE (inputparameter,0), the idling switch to 0;The input parameter is a character type, and is non-empty, you can use COALESCE (InputParameter, ") to convert null to ', and then determine whether the function r

Label:Connect reset should terminate the database connection with a commit action terminate should be able to terminate this client-initiated process and release resources Terminate is a command, in addition to disconnecting, it also terminates the CLP (command line processor) background process, which is the common db2bp.connect reset is the SQL statement quit Exit CLP, but the database connection is constantly open connect reset disconnects the database but does not exit the CLPterminate

DB2 + HADR + TSA high availability test-TSA environment Configuration Configure all node names and Hosts files [Root @ db2-node01 ~] # More/etc/sysconfig/network NETWORKING = yes NETWORKING_IPV6 = yes HOSTNAME = db2-node01 [Root @ db2-node01 ~] # [Root @ db2-node01 ~] # Ec

(TS)), 9), substr (digits (month (TS)), 9), RTrim ( CHAR (year (TS))), substr (digits (hour (TS)), 9), substr (digits (minute (TS)), 9), substr (digits (second ( TS)), 9), RTrim (char (microsecond (TS))) from sysibm.sysdummy1 ) Select Case FMT when ' YYYYMMDD ' then yyyy | | mm | | DD at ' mm/dd/yyyy ' then mm | | '/' | | DD | | '/' | | yyyy when ' yyyy/dd/mm hh:mi:ss ' then yyyy | | '/' | | MM | | '/' | | DD | | "| |

arg. Monthname (arg): returns the month name of arg. Dayname (arg): returns the week of arg. Common examples: Returns the current system time. Oracle:selectsysdatefromdual; DB2:selectcurrentdatefromsysibm.sysdummy1 Returns the next day of the current time) Oracle:selectsysdate,sysdate+interval'1'dayfromdual; DB2:selectcurrentdate+1dayfromsysibm.sysdummy1

definition in the mode. Createin Mode Allows users to create objects in the mode. Dropin Mode Allows you to delete objects in the mode. Information about object-level privileges is stored in the system catalog view. View name issyscat.tabauth,syscat.colauth,syscat.indexauth,syscat.schemaauth,syscat.routineauthAndsyscat.packageauth. It is also controlled through grant... to, revoke... from.It is found that the select format in

=EXP2, otherwise EXP1 COALESCE (Col_1, ") field Null value substitution function 1. The input parameter is a character type, and is allowed to be empty, you can use COALESCE (InputParameter, ') to convert null to ';2. Input type is integral type, and allowed to be empty, can use COALESCE (inputparameter,0), turn idling into 0;3.The input