Nando Theeßen

[NandoTheessen]

DB Setup

• open db for chat system
• write CREATE TABLE statement for organization
• write CREATE TABLE statement for channel
• write CREATE TABLE statement for user
• write CREATE TABLE statement for message
• make sure tables have appropriate foreign keys
• add additional join tables, if necessary
• insert users & organization
• add 10 messages
• add users to channels

write SELECT queries

• list all organization names
• list all channel names
• list all channels in a specific org by org name
• list all messages in a specific channel by channel name general in order of post_time, descending
• list all channels to which Alice belongs
• list all users that belong to channel general
• list all message in all channels by user Alice
• list all messages in random by user Bob
• list count of messages across all channels per user

Stretch

• SELECT Query - list count of messages per user per channel