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17 May 2024

  • 12:5112:51, 17 May 2024 diff hist +3,769‎ N Parallel Computing ‎ Created page with "Almost 99% of all newly invented are imperative programming languages. But imperative languages have one drawback: their parallelization is hard. == Drawbacks of Imperative Programming Languages == Imperative programming languages do have one mayor drawback: state. The concept of an imperative language is that commands are executed which change the content of variables or complex objects in the memory. When trying to create an optimizing compiler that from itself finds..." Tag: Visual edit
  • 12:3612:36, 17 May 2024 diff hist +16‎ History of the MemCP project ‎No edit summary Tag: Visual edit
  • 08:2408:24, 17 May 2024 diff hist +439‎ N History of the MemCP project ‎ Created page with "* On the beforehand, a lot of research was done at the HAEC project * MemCPs predecessor is the [https://wwwdb.inf.tu-dresden.de/research-projects/eris/ Eris] project at TU Dresden * The first commit on MemCP was done on 24th of December 2022 at 12:13:37 * MemCP was originally written in go * The first SQL query on MemCP was successfuly executed on 12.02.2023 source: https://launix.de/launix/memcp-first-sql-query-is-correctly-executed/" Tag: Visual edit
  • 08:2008:20, 17 May 2024 diff hist +222‎ N Databases, Tables and Columns ‎ Created page with "* MemCP has a data folder which defaults to "./data". Every subdirectory of that folder is a database. * Databases consist of tables * Tables consist of columns and shards" Tag: Visual edit
  • 08:1908:19, 17 May 2024 diff hist +57‎ Main Page ‎ →‎Navigation Tag: Visual edit
  • 08:1808:18, 17 May 2024 diff hist +340‎ N Shards, RecordIDs, Main Storage, Delta Storage ‎ Created page with "* Datasets of a table are organized in shards of roughly 60,000 items * Inside a shard with n items, the datasets are numbered from 0..n-1 * The first few datasets of each shard are organized in a column store * The rest of the datasets are organized in a row store * The delta store consists of the insert list as well as the deletion mask" Tag: Visual edit
  • 08:1408:14, 17 May 2024 diff hist +2,475‎ N What is OLTP and OLAP ‎ Created page with "There are basically two types database workloads leading to different database designs: {| class="wikitable" |+ ! !OLTP !OLAP |- |abbr. |Online Transaction Processing |Online ''Analytical'' Processing |- |Example applications |ERP, Ticket System |BI suite, Statistical programs |- |Typical SQL Queries |large amounts of small UPDATE, INSERT |few SELECT with big computation demand |- |Best Storage Format |Row Store |Columnar store |- |Database Engines |MySQL, Postgres |Mone..." Tag: Visual edit
  • 08:0208:02, 17 May 2024 diff hist +77‎ Main Page ‎No edit summary Tag: Visual edit
  • 07:5007:50, 17 May 2024 diff hist +476‎ Main Page ‎No edit summary Tag: Visual edit

15 May 2024

14 May 2024

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