SQL / PostgresSQL
  Installing Postgres (Linux/Windows)
  DB Commands
  Create database & connect to it
  List Database, List Tables, Show Table schema
  Create table & insert data, list
  Delete
  SQL Database Issues
  Stored procedures & Functions
  Stored procedures
    Stored Procedures vs Functions
    Writing Procedures in Postgres
  Function
    Writing Functions in Postgres
    C++ Code calling function

Columnar DB
DB Scaling
  Replication, Federation, Sharding

DB Schema
Graph DB
  Cypher
  GraphDB

Indexing:
  Forward Index, Reverse Indexing

SQL vs NoSQL