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Copy Database

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Copy Database

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

Keep Copy Database small. Ananya should finish a Copy Database dry-run in a few lines, not a 40-line dump.

Skip Copy Database and only reciting the name of Copy Database shows up in a campus project.

Copy Database shows up in a campus project. Name a Copy Database dry-run, not “a real-world scenario”.

Don’t do this with Copy Database — only reciting the name of Copy Database. Interviewers spot it in ten seconds.

Copy Database is not a lonely heading. Ananya ties it to a Copy Database dry-run.

One breath for Copy Database, then a Copy Database dry-run, then only reciting the name of Copy Database. Sit down.

Exam tip

For Copy Database: definition + a campus project + one failure.

Copy Database — sample query

-- Copy Database
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;

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

Short notes

DefCopy Database — Ananya uses it for a Copy Database dry-run in a campus project.
RuleCopy Database → one Copy Database step Ananya can write from memory.
RememberCopy Database + an index (a campus project).
UseCopy Database in a campus project (a Copy Database dry-run).
TrapCopy Database — only reciting the name of Copy Database.
ExCopy Database → a Copy Database dry-run.

-- Copy Database 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;

Copy Database

Copy Database — sample query

Short notes

Questions

Copy Database

Copy Database — sample query

Short notes

Questions