SQLSprint 1successCompiled Learning ObjectivesIntroduction to databasesExplain why databases are needed in Web DevelopmentIntroduction to PostgreSQLDefine what SQL is and what it is used forDefine an RDBMSValidate a PostgreSQL installationCommunicating with the database using SQLDescribe what tables, rows and columns are used for in a relational databaseRetrieve data from a table using PostgreSQLUse expressions to manipulate the results of queriesRetrieve data from a table using conditionals in PostgreSQLInsert new data into existing tables