SQL · Theory

Restore Dump

Theory

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Restore Dump

If you can teach Restore Dump using a Restore Dump dry-run, you know it. If you only know the heading, you don’t.

Restore Dump on the board: one Restore Dump step Amit can write from memory. Then say what a Restore Dump dry-run looks like after.

Without Restore Dump, a campus project gets messy and a Restore Dump dry-run is hard to trust.

Use Restore Dump when a Restore Dump dry-run must stay clear. If a simpler SQL step works, use that instead.

Restore Dump miss — copy-pasting Restore Dump without a dry-run. Fix it before you talk about advanced SQL.

Restore Dump is not a lonely heading. Amit ties it to a Restore Dump dry-run.

Viva for Restore Dump: what it is → one Restore Dump step Amit can write from memory → the mistake (copy-pasting Restore Dump without a dry-run).

Exam tip

Say Restore Dump in one breath, then one Restore Dump step Amit can write from memory, then copy-pasting Restore Dump without a dry-run.

Restore Dump — sample query

-- Restore Dump
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;

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

Short notes

DefRestore Dump — Amit uses it for a Restore Dump dry-run in a campus project.
RuleRestore Dump → one Restore Dump step Amit can write from memory.
RememberRestore Dump + InnoDB (a campus project).
UseRestore Dump in a campus project (a Restore Dump dry-run).
TrapRestore Dump — copy-pasting Restore Dump without a dry-run.
ExRestore Dump → a Restore Dump dry-run.

-- Restore Dump 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;

Restore Dump

Restore Dump — sample query

Short notes

Questions

Restore Dump

Restore Dump — sample query

Short notes

Questions