db2

Database Case Insensitive Index?

由 折月煮酒 提交于 2020-02-02 02:43:10
问题 I have a query where I am searching against a string: SELECT county FROM city WHERE UPPER(name) = 'SAN FRANCISCO'; Now, this works fine, but it doesn't scale well, and I need to optimize it. I have found an option along the lines of creating a generated view, or something like that, but I was hoping for a simpler solution using an index. We are using DB2, and I really want to use an expression in an index, but this option seems to only be available on z/OS, however we are running Linux. I

Fetching rows in DB2

由 做~自己de王妃 提交于 2020-01-30 20:20:05
问题 I know in DB2 (using version 9.7) I can select the first 10 rows of a table by using this query: SELECT * FROM myTable ORDER BY id FETCH FIRST 10 ROWS ONLY But how can I get, for example, rows 11 to 20? I can't use the primary key or the ID to help me... Thanks in advance! 回答1: Here's a sample query that will get rows from a table contain state names, abbreviations, etc. SELECT * FROM ( SELECT stabr, stname, ROW_NUMBER() OVER(ORDER BY stname) AS rownumber FROM states WHERE stcnab = 'US' ) AS

Fetching rows in DB2

由 余生长醉 提交于 2020-01-30 20:19:36
问题 I know in DB2 (using version 9.7) I can select the first 10 rows of a table by using this query: SELECT * FROM myTable ORDER BY id FETCH FIRST 10 ROWS ONLY But how can I get, for example, rows 11 to 20? I can't use the primary key or the ID to help me... Thanks in advance! 回答1: Here's a sample query that will get rows from a table contain state names, abbreviations, etc. SELECT * FROM ( SELECT stabr, stname, ROW_NUMBER() OVER(ORDER BY stname) AS rownumber FROM states WHERE stcnab = 'US' ) AS

What is the equivalent to SQL Server Transactions in DB2?

由 不想你离开。 提交于 2020-01-29 13:33:47
问题 What is the equivalent to the following SQL Server statements in DB2? Begin Transaction Commit Transaction Rollback Transaction 回答1: See here for an example. But basically BEGIN TRANSACTION COMMIT TRANSACTION ROLLBACK 回答2: The answer is actually a little more complicated than indicated here. True, transactions are ANSI standardized, and DB2 may support them. DB2 for z/OS can be a very different beast from the other variants (LUW, Linux-Unix-Windows, being the most common). At risk of sliding

How do I validate a timestamp?

由 断了今生、忘了曾经 提交于 2020-01-29 05:39:47
问题 my application takes in a string like this "2002-10-15 10:55:01.000000". I need to validate that the string is a valid for a db2 timestamp. How can I do this? EDIT: This mostly works public static boolean isTimeStampValid(String inputString) { SimpleDateFormat format = new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSSSSS"); try { format.parse(inputString); return true; } catch (ParseException e) { return false; } } The problem is that if I pass it a bad format for milliseconds like

DB2 SQL Error: SQLCODE=-302, SQLSTATE=22001

由 风流意气都作罢 提交于 2020-01-28 04:48:45
本文转载自： https://www.cnblogs.com/unimme/archive/2013/05/31/3109736.html 作者：unimme 转载请注明该声明。 DB2 SQL Error: SQL CODE =-302, SQLSTATE=22001, SQLERRMC=null 原因： sql中要更新的某个字段的长度超过了数据库表中字段的定义长度。 来源： CSDN 作者： w36680130 链接： https://blog.csdn.net/w36680130/article/details/103814736

【HADR】How to reestablish HADR from scratch after a failure on Standby

由 ∥☆過路亽．° 提交于 2020-01-26 18:49:25
转载 http://www-01.ibm.com/support/docview.wss?uid=swg21514783 Cause Have a HADR pair with Primary online but a failure on the Standby makes it necessary to reestablish the HADR pair again Answer This note intends to serve as a quick guide to reestablish HADR, please follow the Information Center link below (Initializing high availability disaster recovery HADR) for full documentation. 1. ON THE PRIMARY MACHINE: - Break HADR db2 "STOP HADR ON DB <database>" Please note that this step is not always needed. If there has been a failure on the Standby and the Standby is inactive, the expected

Connecting to DB2 using PowerShell

由 眉间皱痕 提交于 2020-01-25 07:21:26
问题 I'm trying to connect to a DB2 database and execute some queries. I had it working a few days ago, but now it's giving some really strange errors and I can't figure out why. The PowerShell connection code $connection = New-Object System.Data.OleDb.OleDbConnection("Provider=IBMDADB2;Database=X;HostName=X;Protocol=TCPIP;Port=X;Uid=X;Pwd=X;CurrentSchema=X"); $ds = New-Object "System.Data.DataSet" $da = New-Object System.Data.OleDb.OleDbDataAdapter($QuerySQL, $connection) $da.Fill($ds) $ds.Tables

DB2 SQL COUNT() result from first table

由 99封情书 提交于 2020-01-25 06:49:30
问题 I posted something earlier and did not explain properly what I am trying to accomplish. I am trying a second time. I want to return field value from two different table but want the count for only of the table. In this case the @SOP table. Right now it gives me total count of the @SOPREV table. SELECT A.SOPSEQ, A.SOPNBR, B.REVUSR2 , COUNT(A.SOPSEQ) OVER() AS AAA FROM @SOP A INNER JOIN @SOPREV B on B.SOPSEQ = A.SOPSEQ WHERE UPPER(A.SOPSTS) = 'IN REVIEW' AND UPPER(B.REVSTS) = 'IN REVIEW' GROUP

how can I print results from sql procedure?

由 ☆樱花仙子☆ 提交于 2020-01-25 06:48:16
问题 I'm writing a procedure to count rows in every table in my database. It so far looks like this: create or replace procedure count_database_rows() dynamic result sets 1 P1: begin atomic DECLARE stmt CHAR(40);-- FOR v1 AS c1 CURSOR FOR SELECT TABLE_SCHEMA, TABLE_NAME FROM sysibm.tables DO SET stmt = 'SELECT COUNT(*) FROM '||TABLE_SCHEMA||'.'||TABLE_NAME;-- PREPARE s FROM stmt;-- EXECUTE s;-- END FOR;-- end P1 ~ however, when I run it: db2 -ntd~ -f script.sql > dump.csv all I'm getting is:
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