Installation Julia Language to Ubuntu

Installation Julia Language to Ubuntu

1. Download last version (you can look last version on the page https://julialang.org/downloads/#musl-fn) wget https://julialang-s3.julialang.org/bin/linux/x64/1.9/julia-1.9.1-linux-x86_64.tar.gz 2. Extrat the downloaded archive tar zxvf julia-1.9.1-linux-x86_64.tar.gz 3. Adding Julia to system path nano ~/.bashrc 3....

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Postgresql, create database

Postgresql, create database

sudo -u postgres psql postgres=# CREATE DATABASE test_database; CREATE DATABASE postgres=# CREATE USER test_user WITH password 'qwerty'; CREATE ROLE postgres=# GRANT ALL privileges ON DATABASE test_database TO test_user; GRANT # drop database postgres=# DROP DATABASE test_database; DROP DATABASE  

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Django ORM. Comparison operations.

Django ORM. Comparison operations.

  Mathematical notation ORM Greater than > __gt Greater than or equal to => __gte Less than < __lt Less than or equal to  =< __lte Equal = =  

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