rdbms

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Get Offset of ROWID in SQLite3

How do I get the o开发者_如何学运维ffset of a particular row in a SQLite3 database? I am not talking about the ROWID, which is not linear, I am talking about the offset/position of a specific ROWID fr[详细]

2023-04-03 06:54 分类：问答
nosql vs rdbms hardware specs

Generally its believed that RDBMS scales better vertically while nosql are designed specifically to scale horizontally.[详细]

2023-04-02 15:22 分类：问答
Rails Very Large Table

Rails likes to use autoincrement 32bit ints as primary keys on t开发者_如何学编程ables. What do people do when they get close to the limits of 32bit int # of rows in a table?You could change the key t[详细]

2023-04-02 08:41 分类：问答
RDBMS for extremely large data sets - what are people using?

I have to perform some serious data mining on very large data sets stored in MySQL db. However, queries that require a bit more than a basic SELECT * FROM X WH开发者_C百科ERE ... tend to become rather[详细]

2023-04-02 05:42 分类：问答
Postgres order by foreign key performance?

I have strange (?) problem with ordering in Postgres by foreign key. It\'s second table & query that takes much longer with order by than without.[详细]

2023-04-01 07:25 分类：问答
DB Schema design, table with many columns

I\'m designing a schema for a learner management system. I currently have LearnerDetails table which stores below categories of information.[详细]

2023-03-31 12:13 分类：问答
What is the best solution to work with archived HUGE amount of records in SQL Server 2008?

I\'m developing a project to gather ebanking transactions which is not online with .NET. It means that I\'ll get some text files containing the transactions for previous day. In total, it contains ab[详细]

2023-03-30 01:34 分类：问答
Object oriented approach using RDBMS

I have a question regarding how to use an object oriented approach while using an RDBMS such as mysql. I am developing a small application that will keep track of billing. It is built in java and I am[详细]

2023-03-27 06:12 分类：问答
Solr index for RDBMS with jdbc driver

I be开发者_如何转开发lieve i can create a Solr index for data in RDBMS using dataImportHandler.[详细]

2023-03-25 22:49 分类：问答
Converting RDF to SQL/RDBMS

I have found that there开发者_如何学编程 are a number of projects that can provide conversions from SQL to RDF. Is there anything that can go from RDF to SQL? It would preferably use the same mapping[详细]

2023-03-24 05:28 分类：问答