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UUID

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UUID

UUID sits in a first job task. Vikram’s job is Vikram walking through UUID. Write that first.

Keep UUID small. Vikram should finish Vikram walking through UUID in a few lines, not a 40-line dump.

Without UUID, a first job task gets messy and Vikram walking through UUID is hard to trust.

UUID shows up in a first job task. Name Vikram walking through UUID, not “a real-world scenario”.

If Vikram walking through UUID breaks under UUID, check only reciting the name of UUID first.

UUID is not a lonely heading. Vikram ties it to Vikram walking through UUID.

Viva for UUID — what it is → one UUID step Vikram can write from memory → the mistake (only reciting the name of UUID).

Exam tip

Say UUID in one breath, then one UUID step Vikram can write from memory, then only reciting the name of UUID.

UUID — sample query

-- UUID
CREATE TABLE demo (
  id INTEGER PRIMARY KEY,
  label TEXT NOT NULL,
  qty INTEGER DEFAULT 0
);
INSERT INTO demo (id, label, qty) VALUES
  (1, 'alpha', 2),
  (2, 'beta', 5);
SELECT label, qty FROM demo WHERE qty >= 2 ORDER BY qty DESC;

UUID: create two demo rows, then SELECT qty >= 2 ordered. Say which labels come back.

Short notes

DefUUID — Vikram uses it for Vikram walking through UUID in a first job task.
RuleUUID → one UUID step Vikram can write from memory.
RememberUUID + the query planner (a first job task).
UseUUID in a first job task (Vikram walking through UUID).
TrapUUID — only reciting the name of UUID.
ExUUID → Vikram walking through UUID.

-- UUID CREATE TABLE demo ( id INTEGER PRIMARY KEY, label TEXT NOT NULL, qty INTEGER DEFAULT 0 ); INSERT INTO demo (id, label, qty) VALUES (1, 'alpha', 2), (2, 'beta', 5); SELECT label, qty FROM demo WHERE qty >= 2 ORDER BY qty DESC;

UUID

UUID — sample query

Short notes

Questions

UUID

UUID — sample query

Short notes

Questions