Can you help me convert the unix era into the format yyyy-mm-dd hh:mm:ss(24h) in sqlite? (GMT 7 is very appreciated).
For example: from 1319017136629 to 4:38:56 PM GMT 7 on Wednesday, October
Tag: How
Monotouch’s mono.data.sqlite: How to get the value of the auto increment field after inserting a line?
Well, this may be very basic stuff, but it took me a long time to figure it out. I think there are more .NET programmers like me, Monotouch and SQLite Newbies don’t know this.
I use Ado.NET (
PostgreSQL – How to imitate the Postgres foreign key into the partition table
I have a partitioned table (call it A) where a serial primary key is referenced by another table (call it B). I know I can’t actually go from one to the other One creates a foreign key (because I d
PostgreSQL – How to create anone2one relationship in ODOO 8?
I have two sets of data showing a one-to-one relationship.
I cannot merge these two sets of data because:
> A specific record may only appear in set A, only appear in set B, or appear i
PostgreSQL – How to specify different column types according to the database type of Haskell GROUNDHOG?
Using the Groundhog library in Haskell, I want to implement a column type that uses “uuid” when the backend is Postgresql, otherwise just use “varchar” for any other backends. Although this should
NOSQL – Cassandra file structure – How is the file used?
When trying to use Cassandra, I found that Cassandra will write the following files:
/…/cassandra/ commitlog/CommitLog-.log
/…/cassandra/data/Keyspace1/Standard1-1-Data.db
/…/cassandra/
NOSQL – How to build a real world relationship in a chart database (such as NEO4J)?
I have a general question about modeling in a graph database, and I can’t seem to surround my head.
How do you model this type of relationship: “Newton invented calculus”?
In simple gra
Array – How to return a element from the string_to_ARRAY () in PostgreSQL 8.4?
I want to parse a field with the following types of values:
“DAVE EBERT CONSTRUCTION~139 LENNOX STREET~SANTA CRUZ,CA 95060 ~~Business call ：(831)818-3170”
I want to make a query like th
How does NOSQL perform a horizontal extension and how it is more effective than RDBMS extension
I am reading an article about noSQL and relational DBMS.
After many posts, I cannot understand exactly how the noSQL system performs horizontal expansion and how it is more effective than RDBMS ex
PostgreSQL – How do I know the actual count in a big table of high insertion rates
Suppose I have a table with exactly 10M rows. I need to know the exact number of rows. It takes 5 seconds for COUNT requests. Suppose 100 rows are added to the table every second.
If I now re