Skip to main content

Improving performance of your DB2 INSERT and UPDATE operations

On a project where we are using DB2, we have to do a lot of bulk inserts and updates. We investigated the bulkcopy option, but in the end we decided to switch to an alternative option supported by DB2; “chaining”.  Chaining will bundle a set of calls and send them in one package to DB2. This has a major speed improvement compared to inserting/updating a lot of rows.

Note: The main reason we switched to a different approach  is that the Bulkcopy option in DB2 has limited support for transactions.

Here is how to use it:

Remark: When using BeginChain/EndChain you cannot combine this with SELECT operations. You end up with exceptions similar to the following one:

{"ERROR [HY010] [IBM] CLI0125E  Function sequence error. SQLSTATE=HY010\r\nERROR [HY010] [IBM] CLI0125E  Function sequence error. SQLSTATE=HY010"}

Popular posts from this blog

DevToys–A swiss army knife for developers

As a developer there are a lot of small tasks you need to do as part of your coding, debugging and testing activities.  DevToys is an offline windows app that tries to help you with these tasks. Instead of using different websites you get a fully offline experience offering help for a large list of tasks. Many tools are available. Here is the current list: Converters JSON <> YAML Timestamp Number Base Cron Parser Encoders / Decoders HTML URL Base64 Text & Image GZip JWT Decoder Formatters JSON SQL XML Generators Hash (MD5, SHA1, SHA256, SHA512) UUID 1 and 4 Lorem Ipsum Checksum Text Escape / Unescape Inspector & Case Converter Regex Tester Text Comparer XML Validator Markdown Preview Graphic Color B

Help! I accidently enabled HSTS–on localhost

I ran into an issue after accidently enabling HSTS for a website on localhost. This was not an issue for the original website that was running in IIS and had a certificate configured. But when I tried to run an Angular app a little bit later on http://localhost:4200 the browser redirected me immediately to https://localhost . Whoops! That was not what I wanted in this case. To fix it, you need to go the network settings of your browser, there are available at: chrome://net-internals/#hsts edge://net-internals/#hsts brave://net-internals/#hsts Enter ‘localhost’ in the domain textbox under the Delete domain security policies section and hit Delete . That should do the trick…

Azure DevOps/ GitHub emoji

I’m really bad at remembering emoji’s. So here is cheat sheet with all emoji’s that can be used in tools that support the github emoji markdown markup: All credits go to rcaviers who created this list.