Data that describes other data or data structures.

learn more… | top users | synonyms

4
votes
1answer
3k views

Netezza: What schema contains all the system tables / views?

Is there a schema I can look in or a query that I can run to see all the Netezza system or metadata tables? I know about _v_table, _v_view, _v_relation_column, and _v_groupusers. I know there are ...
0
votes
1answer
37 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 ...
3
votes
0answers
26 views

ObjID in Page Header

I am reading this article: Inside the Storage Engine: Anatomy of a page. I have a database MyDB, and there is a table MyTable in the database. I have the following questions: If I do as follows: ...
3
votes
0answers
47 views

Possible SQLite bug?

I am running into an issue with SQLite that I think might be a bug. When I run the PRAGMA table_info command on a view that uses an aggregate function, the data type always comes up empty. To ...
2
votes
0answers
17 views

Persisting typed variables

Is it possible to associate typed variables with an object, such as a database, table, or row? Suppose I want to store the schema version as a NUMERIC.
2
votes
0answers
868 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 ...
1
vote
0answers
28 views

Table metadata auto_increment value for table modification

if table X is modified(DELETE, INSERT, UPDATE) then table X's metadata value should get incremented. I can write trigger for the same. But inbuilt solution will be better. This way I can stop ...
0
votes
0answers
38 views

Is there, currently a practice, science, discipline that approaches the analysis of the meta-data of an organization?

I am trying to catalog the data in our organization. I just realized that once that data is cataloged -- essentially meta-data -- we can run analytics on the data itself. What I have in mind Let us ...
0
votes
0answers
91 views

Cleaning up orphaned metadata in information_schema

OK - so the server (Percona 5.6 in this case) 'went away' in the middle of declaring a constraint like so: alter table mytable add constraint fk_mytable_myothertable foreign key (myothertable_id) ...
0
votes
0answers
53 views

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 ...
0
votes
0answers
224 views

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 ...