The following PL/pgSQl script returns the correct number of rows, but the output is a list of开发者_如何学C comma separated values in brackets as follows:
I\'m trying to create a Ruby script that spawns several concurrent child processes, each of which needs to access the same data store (a queue of some type) and do something with the data. The problem
I am trying to install the contrib/unaccent package for Postgresql 8.4 on my Ubuntu box. But I got the error m开发者_高级运维essage when I typed make:
I\'m trying to import a tab-delimited file into my PostgreSQL database. One of the fields in my file is a \"title\" field, which occasionally contains actual quotation marks. For example, my tsv might
Is there any built in function in postgresql to get the sum of of开发者_Go百科 a column. Just a simple example
psql mydb yields: psql: could not connect to server: Permission denied Is the server running locally and accepting
I\'m using rails 3 and my production db is postgres on Heroku. How do I create a proper index开发者_开发知识库 for this query? I don\'t know how to create one for the inner join that\'s happening.
We have two legacy aggregate functions which we are using, which concatenate text values, delmited by a bar (|), or comma (,). These functions are essentially very slow implementations of string_agg()
We have a built a new data fusion C++ algorithm which uses SQLite as an internal database. However, we would like each of the multiple C++ threads to do a parallel db write and SQLite cannot do that.
If I create the following sequence in Postgres: CREATE SEQUENCE test INCREMENT 1 MINVALUE 1 MAXVALUE 9223372036854775807
加载中,请稍侯......