Data that describes other data or data structures.

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29 views

EAV table question

What's the best design for taxonomies in EAV tables? taxonomy id autoincrement name unique terms id autoincrement tax_id references taxonomy(id) name text unique value text ...
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26 views

Upgrade MongoDB meta-data after binary upgrade

I upgraded our MongoDB binaries from 2.2.5 to 2.4.9. I did not follow one of the considerations prior to upgrading: To upgrade to 2.4, sharded clusters must upgrade following the meta-data upgrade ...
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598 views

How to do automated archiving for a SQL Server database based on interpretation of database metadata?

I am looking for a solution giving me automated archiving of SQL Server databases based on a smart interpretation of table relationships that is able to archive records from related tables minimizing ...
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Metadata database on top of flat files

I have a bunch (millions) of flat files. I do sort them into subdirectories, but that doesn't really help searches. Is there some database software that could be fed metadata information and would ...
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Getting Waiting for table metadata lock for select statements

I am using MySQL server 5.6.23 on CentOS and server configuration is like RAM - 32 GB Cores - 6 cores Innodb buffer pool size = 8 GB Key cache size = 2 GB We are using only select queries. But all ...
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Markup Languages and SQL Queries

I need to store some metadata in an MySQL database. This data will need to be stored in some form of markup language and reside in a 'meta_data' field on a table. I will need to run searches ...