Q: Dear Support Team, If we use ubuntu server to install postgresql9.4, how can we keep original data to downgrade postgresql from 9.4 to 9.3. Would it be possible to support the guidance for us ? Thank you. Best Regards, Anderson Hsu A: Actually,…
Summary: in this tutorial, we will show you how to install PostgreSQL on your local system for learning and practicing PostgreSQL. PostgreSQL was developed for UNIX-like platforms, however, it was designed to be portable. It means that PostgreSQL can…
I had been waiting for the latest MySQL connector for .NET to come out so I can move on to the new and sleek Visual Studio 2012 for my projects. Found out connector 6.6.4 has been out which can work with VS2012 so I happily install it. I start a bran…
ThingWorx application need PostgreSQL, I try configurate it in macbook. The first step is install PostgreSQL. Install PostgreSQL is very easy. Download it from www.postgresql.org, and install it. But after installing db, I need create the database an…
https://www.postgresql.org/docs/9.6/static/functions-json.html PostgreSQL 9.6.1 Documentation Prev Up Chapter 9. Functions and Operators Next 9.15. JSON Functions and Operators Table 9-42 shows the operators that are available for use with the two JS…
I am learning Npgsql and PostgreSQL. I am unable to define the output parameter correctly. What am I doing wrong? Here is the function: CREATE OR REPLACE FUNCTION Insert_Customer_WithOutputParameter( IN _FirstName character varying DEFAULT NULL::char…
Streaming replication slots are a pending feature in PostgreSQL 9.4, as part of the logical changeset extraction feature. What are they for, what do you need to know, what changes? What are replication slots? Streaming replication slots are a new fac…
warehouse_db=# create table item (item_id integer not null,item_name text,item_price numeric,item_data text);CREATE TABLEwarehouse_db=# create index item_idx on item(item_id);CREATE INDEX warehouse_db=# \di item_idx List of relations Schema | Name |…
TL;DR: Don't ever set fsync=off, don't kill -9 the postmaster then deletepostmaster.pid, don't run PostgreSQL on network file systems. Reports of database corruption on the PostgreSQL mailing list are uncommon, but hardly rare. While a few data corru…
