db2

Is bulk update faster than single update in db2?

余生长醉 提交于 2019-12-02 10:16:02
问题 I have a Table with 10 columns and in that table I have thousands/millions of rows. In some scenario, I want to update more than 10K records at a time. currently my scenario code works sequentially like, for i in (primary key ids for all records to be updated) executeupdate(i) what I thought is instead of running same query 10K times, I will add all ids in a string and run a single update query like, executeupdate(all ids) actual DB queries can be like this, suppose I have primary key ids

Get back the primary key value after insertion to db2 table by KeyHolder

二次信任 提交于 2019-12-02 09:23:50
Good day, I have a table in db2, where the primary is_autoincrement is set to Yes . Means that everytime insert data to this table, no need to pass in the primary key value, because it will auto generate. However, I need to get back the primary key value after insertion. The code is something as follow: public integer insertRecord() { //insertion sql code here KeyHolder keyHolder = new GeneratedKeyHolder(); PreparedStatementCreatorFactory factory = new PreparedStatementCreatorFactory( getInsertBatch2( ), new int[] { java.sql.Types.TIMESTAMP, java.sql.Types.VARCHAR, java.sql.Types.SMALLINT,

Kafka connect with kerbrosized db

心已入冬 提交于 2019-12-02 09:03:33
I am trying to use kafka connect as sink. Our db are kerberized, I am not able to figure out how we can specify kerberos in the connection,url rather than user pass when i try to form the connection.url as jdbc:db2://<host>:<port>/database;userKerberos=true it fails saying invalid url. My question is how we can use kerberos in kafka connect rather than specifying user and pass? Other question is when I give even user/pass it throw below error A communication error occurred on the connection's underlysing socker. Connection reset ERRORCODE=-4499, SQLSTATE=08001 来源: https://stackoverflow.com

How to get the default schema of a SQL connection?

帅比萌擦擦* 提交于 2019-12-02 09:00:33
From within a java code - where I already have a connection to a database - I need to find the default schema of the connection. I have the following code that gives me a list of all schemas of that connection. rs = transactionManager.getDataSource().getConnection().getMetaData().getSchemas(); while (rs.next()) { log.debug("The schema is {} and the catalogue is {} ", rs.getString(1), rs.getString(2)); } However, I don't want the list of all the schemas. I need the default schema of this connection. Please help. Note1: I am using H2 and DB2 on Windows7 (dev box) and Linux Redhat (production box

How to send a SQL query to database in PHP without waiting for result

风格不统一 提交于 2019-12-02 08:54:36
Working with DB2 and PHP, my ADDs and DROPs take a long time to finish (30 seconds per ADD and DROP). I am curious if there is a way to send my ADDs and DROPs to the database without having PHP wait for a response? I'm fairly certain that most php db controls don't have async methods (too bad). Presuming that you just need to do DB statements that don't interact with the end user you could use pcntl_fork . If you need something else, a solution like this may be more useful. A simple solution is cron to schedule your tasks http://articles.sitepoint.com/article/introducing-cron Schedule all the

DB2 + JPA throwing an error: column not found in the table

爱⌒轻易说出口 提交于 2019-12-02 07:50:12
The DB2-express is throwing an error that seems impossible, when JPA tries to persist an entity: ReportingSQLException: "ITEMID" is not valid in the context where it is used.. INSERT INTO NULLID."DynamicDatabaseTable" ("colname", "rownumber", "value") VALUES (?, ?, ?) [params=?, ?, ?] Since ITEMID is not used in the query above, how can this error be? The ITEMID is an auto-identity-generated column. I have tried executing manually the query and it works OK, so anybody know what's all about? Even after lot of googling, I'm totally clueless here. The database table in DB2 is fine, I have triple

Conditional DB2 SQL query

馋奶兔 提交于 2019-12-02 07:40:52
问题 Lets Say I have a table called "Company", with a key of CompanyID There is another related table called "CompanyAddress", that has the CompanyID foreign key, so a join could be easily established. This CompanyAddress table could have multiple addresses for a given company, say AddressType = 1, or AddressType = 2 The join etc to get the fields is trivial, however I want a conditional, where I query for addresses, and use AddressType = 1 if it is there, if it is not, use AddressType = 2

DB2 query results in Hex format — Need Character/String

血红的双手。 提交于 2019-12-02 07:36:29
I have a query that I can run on a DB2 table using my python SQL tester, and it returns the string values I'm looking for. However, when I run it directly on my database it returns a hex value. Any help in getting the results as a character string would be greatly appreciated! Here is the field definition: ORCTL CCDATA 243 A 14 256 Order Control File Data My query on the iSeries is: select ccdata from ORCTL where ccctlk = 'BUYRAK' Using your query, you can cast a string with another CCSID, eg : select cast(ccdata as char(14) CCSID 37) from ORCTL where ccctlk = 'BUYRAK' My guess is that it isn

Top Group By DB2

风流意气都作罢 提交于 2019-12-02 06:36:47
I've been trying for hours but can't get the query to do what I want using DB2. From table Company and Users I have the following tickets quantity info per company/user user company quantity ------------ ------------ ------------ mark nissan 300 tom toyota 50 steve krysler 80 mark ford 20 tom toyota 120 jose toyota 230 tom nissan 145 steve toyota 10 jose krysler 35 steve ford 100 This is generated by the query: SELECT T.USER, COUNT(T.USER) AS QUANTITY, T.COMPANY FROM TICKET T INNER JOIN COMPANY P ON P.COMPANY = T.COMPANY GROUP BY (T.USER, T.COMPANY) -- ORDER BY QUANTITY DESC What I want to see

DATE lookup table (1990/01/01:2041/12/31)

…衆ロ難τιáo~ 提交于 2019-12-02 06:01:10
I use a DATE's master table for looking up dates and other values in order to control several events, intervals and calculations within my app. It has rows for every single day begining from 01/01/1990 to 12/31/2041. One example of how I use this lookup table is: A customer pawned an item on: JAN-31-2010 Customer returns on MAY-03-2010 to make an interest pymt to avoid forfeiting the item. If he pays 1 months interest, the employee enters a "1" and the app looks-up the pawn date (JAN-31-2010) in date master table and puts FEB-28-2010 in the applicable interest pymt date. FEB-28 is returned