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IF Statement

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IF Statement

Ananya only reaches for IF Statement when a IF Statement dry-run has to stay correct in a campus project.

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

Skip IF Statement and only reciting the name of IF Statement shows up in a campus project.

Ananya ships IF Statement in a campus project. That is the use case worth saying.

IF Statement trap — only reciting the name of IF Statement. Ananya loses marks for that every viva.

Place IF Statement next to nearby SQL work — one IF Statement step Ananya can write from memory is the link.

Close IF Statement with: “If I skip it, a IF Statement dry-run goes wrong like this: only reciting the name of IF Statement.”

Exam tip

For IF Statement: definition + a campus project + one failure.

IF Statement — sample query

-- IF Statement
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;

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

Short notes

DefIF Statement — Ananya uses it for a IF Statement dry-run in a campus project.
RuleIF Statement → one IF Statement step Ananya can write from memory.
RememberIF Statement + the query planner (a campus project).
UseIF Statement in a campus project (a IF Statement dry-run).
TrapIF Statement — only reciting the name of IF Statement.
ExIF Statement → a IF Statement dry-run.

-- IF Statement 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;

IF Statement

IF Statement — sample query

Short notes

Questions

IF Statement

IF Statement — sample query

Short notes

Questions