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Why unsigned integer is not available in PostgreSQL?
... is the difference between tinyint, smallint, mediumint, bigint and int in MySQL? ) and realized that PostgreSQL does not support unsigned integer.
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Select rows which are not present in other table
... records where join doesn't exist
Similar question on dba.SE targeted at MySQL:
Select rows where value of second column is not present in first column
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Advantages and disadvantages of GUID / UUID database keys
...of GUIDs as Primary Keys (SQL Server 2000)
Myths, GUID vs. Autoincrement (MySQL 5)
This is realy what you want.
UID Pros
Unique across every table, every database, every server
Allows easy merging of records from different databases
Allows easy distribution of databases across multiple servers
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How to get a time zone from a location using latitude and longitude coordinates?
...her Ideas
Find the nearest city with an R-Tree
Find the nearest city with MySQL
Please update this list if you know of any others
Also, note that the nearest-city approach may not yield the "correct" result, just an approximation.
Conversion To Windows Zones
Most of the methods listed will return ...
Database Design for Revisions?
...le should contain all columns present in the first, Records table. E.g. in mysql you can easily create table with the same structure as another table (create table X like Y). And, when you are about to change structure of the Records table in your live database, you have to use alter table commands ...
What is the best way to compare floats for almost-equality in Python?
...operation (notably multiplication, division, addition, subtraction, square root). (In case of tie, round so the low bit is even.) (Be particularly careful about square root and division; your language implementation might use methods that do not conform to IEEE 754 for those.) Because of this requir...
How do I share IntelliJ Run/Debug configurations between projects?
... system > click on share check mark
now copy this file from
PROJECT_ROOT_DIRECTORY/.idea/runConfigurations/ConfigurationName.xml
to your NEW_PROJECT_ROOT_DIRECTORY/.idea/runConfigurations at the same place and it is available now to your run configuration
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Can I specify multiple users for myself in .gitconfig?
...c user / email address which overrides the global configuration. From the root of the repo, run
git config user.name "Your Name Here"
git config user.email your@email.com
whereas the default user / email is configured in your ~/.gitconfig
git config --global user.name "Your Name Here"
git confi...
How do I design a class in Python?
...ormat but could easily convert to other formats when outputting (Postgres, MySQL, MongoDB).
Now let's think through the Database object. What does this hide and store? Well clearly it can't store the full contents of the database, since that is why we have a database! So what is the point? The goal...
Using an RDBMS as event sourcing storage
...ly need one generic "Events" table. In Ncqrs the mapping to your Aggregate Roots happens through the "EventSources" table, where each EventSource corresponds to an actual Aggregate Root.)
Table Events:
Id [uniqueidentifier] NOT NULL,
TimeStamp [datetime] NOT NULL,
Name [varchar](max) N...