partitioning
How to do automatic data archiving in SQL Server?
I have table for which every day I want to do automatic archiving. So to be clear every day I want to take information generated during that day and move it into another partition (of same table) not[详细]
2023-01-11 15:22 分类：问答Oracle Partition Pruning with bind variables
I have a large (150m+ row) table, which is partitioned into quarters using a DATE partition key. When I query the table using something like...[详细]
2023-01-08 11:07 分类：问答Sql Server Dynamic Database Partitioning
Is there anything called dynamic partitioning in SQL server? If开发者_运维技巧 so how can i implement it?You can have an automatic sliding window table partition that will keep say the last X days dat[详细]
2023-01-08 07:13 分类：问答postgresql: using NEW.* in dynamic command for EXECUTE
i try to create a plpgsql trigger for postgresql 8.3 which automatically partitions a table on before insert[详细]
2023-01-07 19:43 分类：问答Puzzle: Need an example of a "complicated" equivalence relation / partitioning that disallows sorting and/or hashing
From the question \"Is partitioning easier than sorting?\": Suppose I have a list of items and an equivalence relation on them, and[详细]
2023-01-07 04:36 分类：问答Is partitioning easier than sorting?
This is a question that\'s been lingering in my mind for some time ... Suppose I have a list of items and an equivalence relation on them, and comparing two items takes constant time.[详细]
2023-01-07 02:37 分类：问答Optimize SELECT from Partitioned Fact Table in Oracle 10
I have a fact table containing 8 Million rows with 1 Million rows increase per month. The table already contains indexes on it. The table is used by IBM Cognos environment to generate reports. Current[详细]
2023-01-06 04:01 分类：问答Parititioned Data Map/Reduce
I have written my custom partitioner for partitioning datasets. I want to partition two datasets using the same partitioner and then in the next mapreduce job, I want each mapper to handle the same pa[详细]
2023-01-05 20:12 分类：问答Optimizing a Partition Function
Here is the code, in python: # function for pentagonal numbers def pent (n):return int((0.5*n)*((3*n)-1))[详细]
2023-01-05 17:27 分类：问答Tools for optimizing scalability of an Hadoop application?
I\'m working with a team of mine on a small application that takes a lot of input (logfiles of a day) and produces useful output after several (now 4, in the future perhaps 10) map-reduce steps (Hadoo[详细]
2023-01-05 11:01 分类：问答
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