我希望Redis每5分钟在PostgreSQL中存储数据并将所有信息放入 PostgreSQL,或者如果50多个键被更改。 我如何才能做到这一点?
<% 1> <% 1> 为何要这么做? Redis 已经拥有非常好的< a href=>"http://antirez.com/ most/redis-persistence-demystificed.html" rel="nofollow" >peristence 功能 。 看看这些功能 。
<%2> > 如果您确定您想要这样做( 我不是), 您将不得不将您的数据从一个方案转换为另一个方案: 关键值存储( Redis) 中的数据必须以一种完全不同于关系数据库( PostgreSQL) 的方式组织。 此转换的复杂性取决于数据的确切性质, 并且必须使用自定义代码 。
我如何将Excel板的数据输入我的Django应用? I m将PosgreSQL数据库作为数据库。
On production our database is a few hundred gigabytes in size. For development and testing, we need to create snapshots of this database that are functionally equivalent, but which are only 10 or 20 ...
I ll take the simplest of the SQL functions as an example: CREATE OR REPLACE FUNCTION skater_name_match(INTEGER,VARCHAR) RETURNS BOOL AS $$ SELECT $1 IN (SELECT skaters_skater.competitor_ptr_id ...
I m 在当地网络上运行几台机器,在Salgresql8.3处撰写一份申请。
I want to join few attributes in select statement as one for example select id, (name + + surname + + age) as info from users this doesn t work, how to do it? I m using postgreSQL.
Hey, I have 2 tables in PostgreSql: 1 - documents: id, title 2 - updates: id, document_id, date and some data: documents: | 1 | Test Title | updates: | 1 | 1 | 2006-01-01 | | 2 | 1 | 2007-01-01 |...
I need to setup my PostgreSQL DB s text encoding to handle non-American English characters that you d find showing up in languages such as German, Spanish, and French. What character encoding should ...
I am using a set of SQL LIKE conditions to go through the alphabet and list all items beginning with the appropriate letter, e.g. to get all books where the title starts with the letter "A": SELECT * ...
