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radino's blog | Focusing on interesting SQL and PL/SQL problems

Focusing on interesting SQL and PL/SQL problems. Simple Simulation of Partitioning (Pruning). Recently, a friend of mine asked me how would I simulate a partitioning feature in Oracle Standard Edition, where the partitioning option is not available. Well, building a data warehouse in Oracle environment without two crucial features such as bitmap indices and partitioning is not a very. Continue reading ». February 1, 2015. Fast data loading from a remote host. Continue reading ». January 11, 2015. Finally...

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Focusing on interesting SQL and PL/SQL problems. Simple Simulation of Partitioning (Pruning). Recently, a friend of mine asked me how would I simulate a partitioning feature in Oracle Standard Edition, where the partitioning option is not available. Well, building a data warehouse in Oracle environment without two crucial features such as bitmap indices and partitioning is not a very. Continue reading ». February 1, 2015. Fast data loading from a remote host. Continue reading ». January 11, 2015. Finally...

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radino's blog | Focusing on interesting SQL and PL/SQL problems | radino.eu Reviews

https://radino.eu

Focusing on interesting SQL and PL/SQL problems. Simple Simulation of Partitioning (Pruning). Recently, a friend of mine asked me how would I simulate a partitioning feature in Oracle Standard Edition, where the partitioning option is not available. Well, building a data warehouse in Oracle environment without two crucial features such as bitmap indices and partitioning is not a very. Continue reading ». February 1, 2015. Fast data loading from a remote host. Continue reading ». January 11, 2015. Finally...

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radino.eu

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Fast data loading from a remote host – radino's blog

http://radino.eu/2015/01/11/fast-data-loading-from-a-remote-host

Focusing on interesting SQL and PL/SQL problems. Fast data loading from a remote host. My last post is few years old and it’s not because I have lack of good ideas to be written, but because of my poor time management I’m trying to improve. It’s January, time to make some New Year resolutions :), so I will try to post more often. Compress the file on the source system, because usually the text files have low entropy, so the compression ration is very good. Create a named pipe. On the target host. This Bl...

2

Simple Simulation of Partitioning (Pruning) – radino's blog

http://radino.eu/2015/02/01/simple-simulation-of-partitioning

Focusing on interesting SQL and PL/SQL problems. Simple Simulation of Partitioning (Pruning). Recently, a friend of mine asked me how would I simulate a partitioning feature in Oracle Standard Edition, where the partitioning option is not available. Well, building a data warehouse in Oracle environment without two crucial features such as bitmap indices and partitioning is not a very pleasant task. Let’s go back to my friend’s case. The whole process would look like:. Firstly, I will create three tables&...

3

Oracle – radino's blog

http://radino.eu/category/oracle

Focusing on interesting SQL and PL/SQL problems. Simple Simulation of Partitioning (Pruning). Recently, a friend of mine asked me how would I simulate a partitioning feature in Oracle Standard Edition, where the partitioning option is not available. Well, building a data warehouse in Oracle environment without two crucial features such as bitmap indices and partitioning is not a very. Continue reading ». February 1, 2015. Continue reading ». November 17, 2010. Continue reading ». November 17, 2010. There...

4

Bitwise OR Aggregate Function – radino's blog

http://radino.eu/2008/05/31/bitwise-or-aggregate-function

Focusing on interesting SQL and PL/SQL problems. Bitwise OR Aggregate Function. A few months ago I was working on an application which used bits to store some flags in one number. In this approach the bit value in the number indicates whether a flag is on (1) or off (0). In my case a flag was tied with a column of a front-end table. If the flag was off then the column didn’t appear on the front-end. State : off on off on bit value: 0 1 0 1. Decadic), so the number 5 will be stored in the database. We uns...

5

Product aggregate function – radino's blog

http://radino.eu/2010/11/17/product-aggregate-function

Focusing on interesting SQL and PL/SQL problems. Few months ago I needed an product aggregate function. It’s strange that Oracle does not have such functionality. I think it’s pretty trivial. Here is it is:. I have never mention it, but a user-defined aggregate function may be used also as an analytic function. This is an example for n! Ln(x*y) = ln(x) ln(y). So to compute product we need only the SUM. A word of caution here: You should test this logarithmic approach! UPDATE [13.1.2011]. November 17, 2010.

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radino's blog | Focusing on interesting SQL and PL/SQL problems

Focusing on interesting SQL and PL/SQL problems. Simple Simulation of Partitioning (Pruning). Recently, a friend of mine asked me how would I simulate a partitioning feature in Oracle Standard Edition, where the partitioning option is not available. Well, building a data warehouse in Oracle environment without two crucial features such as bitmap indices and partitioning is not a very. Continue reading ». February 1, 2015. Fast data loading from a remote host. Continue reading ». January 11, 2015. Finally...

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