I\'m currently working on a system that in some cases will need to run on a local database during the day, and then replicated to a central server during the night.It cannot all run from one central d
I\'m building an application to let col开发者_JAVA百科lege students search for housing. My model includes a Room table with the room dimensions, whether it\'s reserved for hall staff, and its room num
I\'m dealing with an annoying problem in core data I\'ve got a table named Character, which is made as follows
I have three tables at my MySQL database. First one is cities, second one is towns and third one is districts. Every town has many districts. My table details:
In an effort to avoid auto sequence numbers and the like for one reason or another in this particular database, I wondered if anyone could see any problems with this:
I run a project that deals with开发者_StackOverflow社区 plays, mostly Shakespeare. Right now, for storage, we just parse them out into a JSON array formatted like this:
I have a table t with a column c, which is an int and has a btree index on it. Why does the following query not utilize this index?
I have the following tables in a relational database: [Sensor] LocationId [PK / FK -> Location] SensorNo [PK]
I have a table of Events and a number of subtables of different types to define each event. Event table has an ID, a (potentially non-unique) Datetime, userId, and an event typecode.
MySQL, PostgreSQL and MS SQL Server are relational database systems, and NoSQL, MongoDB, etc. are non-relat开发者_开发知识库ional DBMSs.
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