postgresql
SQL: select N “most recent” rows in ascending order
For example, if my data look like this: timestamp | message 100 | hello 101 | world 102 | foo 103 | bar 104 | baz[详细]
2023-04-12 04:39 分类：问答What's wrong with my CREATE TABLE command?
I\'m following the instructions from this document. My exact version is 8.4.4. This is what I try to do[详细]
2023-04-12 04:22 分类：问答How does Sphinx handle URLs
When working with PostgreSQL you can break apart a URL into several different lexemes when using full text search.For example:[详细]
2023-04-12 01:37 分类：问答Converting a ruby on rails app from sqlite to postgresql
I am going to use thinking sphinx for my application and开发者_如何学JAVA it requires a conversion to postgresql. I have downloaded both sphinx and postgresql using homebrew, but I am unsure how to co[详细]
2023-04-12 00:50 分类：问答Draw Camera Range with Postgis
i am working on some camera data. I have some points which consist of azimuth, angle, distance, and of course coordinate field attributes. In postgresql postgisI want to draw shapes like this with fun[详细]
2023-04-11 23:41 分类：问答How to get the closest character that is greater than the given one in postgresql?
I n开发者_开发知识库eed to get the closest character specific to locale that is greater than (in terms of string comparison) the given one in postgresql. I tried to use[详细]
2023-04-11 23:24 分类：问答Why won't the pg gem install?
I\'ve just installed PostgreSQL 9.x on my mac and when trying to run bundle install after adding pg to my gemfile, I get:[详细]
2023-04-11 23:00 分类：问答How to store birthdays without a year part?
Similar question: Postgres birthdays selection We\'re designing a new feature: we\'ll be storing the month and day parts of people\'s birthdays, but not the year.So a user born on开发者_高级运维 chri[详细]
2023-04-11 21:32 分类：问答Django on Heroku
I am building a website which I host on Webfaction\'s most basic plan right now. However, today I got a message one of my processes was killed as it was consuming to much memory.[详细]
2023-04-11 21:12 分类：问答How do I use postgresqlConnect in the Database.HaskellDB.HDBC.PostgreSQL module?
I am not quite sure how to use the postgresqlConnect function in module Database.HaskellDB.HDBC.PostgreSQL to connect to a PostgreSQL database. The Haddock documentation page only states the type sign[详细]
2023-04-11 20:41 分类：问答
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