Author Erwin Homan
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iPhone calendar synchronization: iOS settings for Baïkal (CalDAV), certificates
Posted · Author Erwin Homan
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SQL - Calculation of the date of the first day of the week (ISO 8601)
Calculations involving dates in database selections can cause headaches. For aggregation into “week buckets”, we were looking for a way to calculate the date of the first day of the week, given an arbitrary date and using the ISO 8601 definiton of a week.
Posted · Author Erwin Homan
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iPhone calendar synchronization: iOS settings for Baïkal (CalDAV)
For synchronization of contacts and calendar on iOS using a Baïkal-server running on Nginx:
- The redirect rules (for iOS) must be correctly applied in Nginx, so in its base configuration.
- The url’s that must be entered into iOS for connecting with Baïkal are different from what other Baïkal-clients use.
Posted · Author Erwin Homan
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New: iPhone
Posted · Author Erwin Homan
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The SAP HANA delta-stores
In order to avoid impacting the run time of data changing operations too much, SAP HANA does not immediately update the row and column versions of a columnar tabular upon posting the changes. Every change to the table’s content is initially saved to a delta-store for that table, to be processed at a later moment. A consequence is that, for simple operations on the data, different administrations have to be read.
Posted · Author Erwin Homan