More information about PostgreSQL can be found here:https://www.postgresql.org/about/. There are several ways to import Oracle data into PostgreSQL. Here we will discuss a few of the methods that are well proven and most popular. Method 1: Ora2Pg As the name suggests, Ora2Pg is used t...
Here we will walk through the basic steps you would need to follow to import a .csv file successfully into a PostgreSQL database. We will explain it using two different options: first, when you are already logged into the database and then call the file from inside a psql prompt; and s...
Update the values in the second table by joining values from the first table: Create two tables with data: createtablecountries (idint, namevarchar(20));createtablestates (idint, namevarchar(20));insertintocountriesvalues(1,'America') , (2,'Brazil') , (3,'Canada')...
Importing CSV files into a MySQL HeatWave Database Service instance is very easy and efficient thanks to MySQL Shell. It can be used to import data from PostgreSQL but also from other RDBMS. Of course depending of the structure of the data, some initial work might be required, especial...
PostgreSQL is a robust and versatile open-source relational database management system that has gained considerable traction in the tech industry. It has become the preferred choice for developers looking to handle complex queries and big datasets. Wh
That’s all about describing a database object in PostgreSQL using psql’s meta-commands. Bonus Tip 1: How to Describe Postgres Schemas Using psql? A schema in Postgres is like a container that allows us to organize the database objects into logical groups. Postgres allows us to create seve...
sqoop import- The executable is namedsqoop, and we are instructing it to import the data from a table or view from a database to the HDFS. --connect- With the--connectargument, we are passing in the JDBC connect string for PostgreSQL. In this case, we use the IP address, port number...
In PostgreSQL, the database objects are created using the CREATE command. In this write-up, we will discuss how to use the Postgres “CREATE” command for Table, View, Sequence, INDEX, Function, and Tablespace Creation. Case 1: Use the CREATE Command For Table Creation ...
On the first node only, aspostgresuser modify thepostgresql.conffile. The steps below are used for creating a replicated database instance for use with promotablepgsqlpacemaker resource: Below are the settings which should be included, and these can be appended to the bottom of the configuration...
After doing some research, I found one build-in command in postgresql server does the tricks. pg_dump and pg_dumpall. Here I only use pg_dump to accomplish my task. Export: pg_dump -c scportal -h localhost -U ethanz > /home/ethanz/database_dump1.sql ...