I need to change a lot default values of the DB structure for new entries in MULTIPLE tables to have this new default value in DB I tried to use something like this: But the SET prefix does not fork for alter table command. Is there any way how to do this to use pre-defined value so I can only
Tag: database
Shell Script : MongoDB Dump
I’m creating a shell script to automatically dump the database. I have the current code below. The problem is when I’m opening the zip file it shows a single binary file. Usually, when I dump manually it consists of bson and json files. I don’t know what I’m doing wrong I’m expec…
Getting syntax error while exporting mysql database
I have cPanel trial version installed on the centOS server which is expired now. So I don’t have access to cPanel user and WHM login. I am tried the following mysql> mysqldump -u root –ppassword db_name > db_nametext.sql; Thank you for time and consideration. Answer You cannot run mysqldump from m…
Where can I download the Northwind sample database for SQLite?
After looking at: Where can I download Northwind database for Postgresql? it looks like the best place for Northwind data, outside of the Microsoft itself, is: https://code.google.com/archive/p/northwindextended/downloads to what extent does this raw data match the Microsoft data? Is there any advantage in do…
MySQL Alter Table DB Freezes
I’m using Ubuntu 16.04.3 and mysql Ver 14.14 Distrib 5.7.22. When I try to alter my db table column with the following command the database appears to freeze; mysql> alter table records modify column name varchar(150); Table size is 2.8MiB (6,000 records). I’m simply trying to change the varcha…
PRESTO + dose presto cordinator can manage 160 workers node?
We have a presto cluster with 160 worker nodes. presto coordinator installed on VM machine ( 32G + 16 CPU ) and all other are worker machines ( physical machines ) the basic question is – – if the machine with the presto coordinator can serve 160 workers machines additional to that: How we do the …
Node module ifx_db installation fails in linux
I am trying to install ifx_db (Node module to connect to informix DB). It is working fine in Windows but in Linux i am getting the following error. Request your inputs towards this Thanks in advance Answer FYI: The Informix node.js drive is depended on Informix Client SDK version 4.10 xC2 or above, that you n…
Tango with Django (v1.9/1.10) – Chapter 5, populate_rango issues
I will try to be concise. The background for this issue is that I’m familiar with Python, however I am BRAND NEW to django. This book is my first exposure to it and I’ve come to find the more I work through the book that online Q/A’s for django are not very general, thus making it harder to …
psql: could not connect to server: No such file or directory “Centos7”
Not able to access psql database. Below is the error while accessing database: I also tried to look for postmaster.pid but didn’t find it Answer Your server is down or at least not where your psql command thinks it is. You can search your system for postgres.conf which should tell you what port it’…
PostgreSQL 9.5 doesn’t start after reboot with systemd
I’m having a problem with PostgreSQL 9.5+173 on Ubuntu 16.04 and I happened to stumble across the following threads in my research that somewhat describes the behavior I’m seeing: https://www.postgresql.org/message-id/CAFyxdeT%2B%3Dx-d0oNbFPoe%2B4xnt0Qdfi%2BzAEn%2BrQmEK0AZbJFRtg%40mail.gmail.com h…