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Within Informix the username is defined as char(32). The Informix feature "Informix trusted context" enable Informix to be used with Federated Authentication, in such cases the impersonated user is identified using an email address. In view of thi...
Allow DDL changes on a table with full row logging
We want to use CDC to replicate data changes to a different system. We do schema changes once a month, and this complicates things a lot. According to our vendor, this is a limitation for Informix only, other source systems can hande DDL changes t...
Informix documentation for oncheck command should be crystal clear
Informix documentation for oncheck command does not explain clearly that this command should be run only during a maintenance window or during an off-hours period because the oncheck utility places a shared lock on system catalog tables when the d...
use raw table to bulk load/huge files in Informix cluster
raw table load and copy of raw table data availability read only secondary, RSS sec. in a HDR cluster. A big one for us. How do we load billion + row table in a HDR cluster without consuming too many logical logs? Is there a way to load a raw tabl...
Certification of Informix Connection Manager with ESQL/COBOL
We are implementing Informix Connection manager with HDR as High Availability solution for our organization. During testing, we identified connection manager is not certified for ESQL/Cobol, our business-critical application is written in Cobol. i...
Informix HQ (1.0.0 2019-02-07) has the functionality to display dbspaces (Storage --> Spaces).
The Type column shows temporary dbspace, sbspace and dbspace. It does not show e.g. the Physical Log Dbspace. (onsta -d flag P). Furthermore HQ coul...
over 4 years ago
Not under consideration
when I add the new dbspace, the page size is 16 k; Informix add a default bufferpool , I forget to create the bufferpool using onparams firstly, later I found it's too small, can't meet the performance requirement, I found I have no method to chan...
when using interval fragment with date or datetime column, the latest fragment is in the last one, so the performance of the Insert will become slow. if Informix can keep the latest fragment as the first fragment, it will improve the performance o...
Informix 12.10 fc8 has file level encryption available in the database. However, from my understanding if you do a backup, this file in not encrypted. Can we have a method to perform a databack that keeps the encryption in the backup data.
Use FSCR information to ommit empty data pages while performing Table Scan (TBSCAN)
ABSTRACT:Table scan over volatile table with large number of empty pages scans all empty pages instead of using FSCR to find pages to be scanned. VERSION INFORMATION:DB2 9.7.FP5 on Linux / DB2 9.7.FP9a on AIX 7.1 / DB2 10.5.FP4 on Linux TECHNICAL ...
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