postgresql

How do I write a function in plpgsql that compares a date with a timestamp without time zone?

由 社会主义新天地 提交于 2021-02-17 03:12:31
问题 I want to write a function that returns a table with all the rows between firstDate and lastDate . The rows have datatype timestamp without time zone They also have to be of a specific node id. This is my function: CREATE OR REPLACE FUNCTION get_measurements_by_node_and_date(nodeID INTEGER, firstDate date, lastDate date) RETURNS TABLE (measurement_id INTEGER, node_id INTEGER, carbon_dioxide DOUBLE PRECISION, hydrocarbons DOUBLE PRECISION, temperature DOUBLE PRECISION, humidity DOUBLE

How do I write a function in plpgsql that compares a date with a timestamp without time zone?

由 こ雲淡風輕ζ 提交于 2021-02-17 03:08:24
问题 I want to write a function that returns a table with all the rows between firstDate and lastDate . The rows have datatype timestamp without time zone They also have to be of a specific node id. This is my function: CREATE OR REPLACE FUNCTION get_measurements_by_node_and_date(nodeID INTEGER, firstDate date, lastDate date) RETURNS TABLE (measurement_id INTEGER, node_id INTEGER, carbon_dioxide DOUBLE PRECISION, hydrocarbons DOUBLE PRECISION, temperature DOUBLE PRECISION, humidity DOUBLE

Django loaddata returns a permission denied for relation

由 China☆狼群 提交于 2021-02-16 18:24:05
问题 I am trying to load some data from a json file generated from a dumpdata on a django project to a new one with a new database using loaddata. The connection to the db seems to work but almost right away I receive a permission denied for relation django_content_type. I don't get what permission we are talking about. the db is postgres on a separate server and I connect to it through a vagrant virtual machine on my laptop that has a virtual environment and the settings.py has the settings to

SCRAM authentication requires libpq version 10 or above in

由 不羁岁月 提交于 2021-02-16 18:01:44
问题 I get an error when I try to connect to the Postgresql server with PHP, and I get an error like this one: Unable to connect to PostgreSQL server: SCRAM authentication requires libpq version 10 or above in I use EnterpriseDb, and is pg_connect(); in my code and I don't know what is wrong. 回答1: I got that error when I enabled only one extension extension=php_pgsql.dll in php.ini , I tried again uncomment extension=php_pdo_pgsql.dll , and it's worked well for me 来源： https://stackoverflow.com

Set environment variable (PGPASSWORD) before executing a command (pg_dump) on Windows SSH server in Paramiko

由 妖精的绣舞 提交于 2021-02-16 15:14:28
问题 I want to create a backup of my postgres database via SSH connecting to a Windows Server 2019. I use the Paramiko Python library in order to do this, but unfortunately the sql-file does not contain any data (file size is 0 and files cannot not deleted as they are still opened in cmd). Thus, I suspect the execution of my command hasn't finished ... This is my function: def ssh_server(server, username, password, pg_pass, ps_user, database): client = paramiko.SSHClient() client.load_system_host

Postgres UPDATE using rank window function

由 别等时光非礼了梦想. 提交于 2021-02-16 13:58:13
问题 I have a table called medias where I've just recently added a new column to called sort_order of type Int . The row values will not be unique to the entire table, but to their own respective owner_user_id fields. Regardless, I don't even care about the uniqueness of them tbh. The point of all this is to allow users to set the sort order of the photos they upload (up to 10, and they can drag and re-order, etc). When the user "deletes" a photo, I don't remove the record, I simply set a visible

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由 六眼飞鱼酱① 提交于 2021-02-16 13:10:31
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.netcore控制台->定时任务Quartz

由 不羁岁月 提交于 2021-02-16 12:26:13
　　之前做数据同步时，用过timer、window服务，现在不用那么费事了，可以使用Quartz,并且配置灵活，使用cron表达式配置XML就可以。我用的是3.0.7版本支持.netcore。 首先创建一个.netcore控制台应用程序，添加Quartz、Quartz.Jobs、Quartz.Plugins引用，这里面添加了PostgreSql数据库的连接方法，其它数据库可以做为参考，添加Npgsql、Npgsql.EntityFrameworkCore.PostgreSQL引用，目录结构如下 创建数据库DBContext类 using System; using System.Collections.Generic; using System.Text; using Microsoft.EntityFrameworkCore; namespace QuartzPro.DbContext { public class PostgreDbContext : Microsoft.EntityFrameworkCore.DbContext { private string _conn; public PostgreDbContext(DbContextOptions<PostgreDbContext> options) : base (options) { } public

How can I solve Postgresql SCRAM authentifcation problem?

由 烂漫一生 提交于 2021-02-16 10:32:22
问题 I am getting an error after moving the project to production. The error is as follows while running with production server pg_connect(): Unable to connect to PostgreSQL server: SCRAM authentication requires libpq version 10 or above. Here is my postgreSQL version: Development Version : PostgreSQL 11.5 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-36), 64-bit Production Version : PostgreSQL 11.5 (EnterpriseDB Advanced Server 11.5.12) on x86_64-pc-linux-gnu,

How can I solve Postgresql SCRAM authentifcation problem?

由 老子叫甜甜 提交于 2021-02-16 10:30:34
问题 I am getting an error after moving the project to production. The error is as follows while running with production server pg_connect(): Unable to connect to PostgreSQL server: SCRAM authentication requires libpq version 10 or above. Here is my postgreSQL version: Development Version : PostgreSQL 11.5 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-36), 64-bit Production Version : PostgreSQL 11.5 (EnterpriseDB Advanced Server 11.5.12) on x86_64-pc-linux-gnu,
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