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DATE()

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DATE()

DATE() is simple if you keep it on paper. Zara uses it for Zara walking through DATE in a first job task.

Keep DATE() small. Zara should finish Zara walking through DATE in a few lines, not a 40-line dump.

Skip DATE() and copy-pasting DATE without a dry-run shows up in a first job task.

Use DATE() when Zara walking through DATE must stay clear. If a simpler SQL step works, use that instead.

Don’t do this with DATE() — copy-pasting DATE without a dry-run. Interviewers spot it in ten seconds.

Place DATE() next to nearby SQL work — one DATE step Zara can write from memory is the link.

Close DATE() with — “If I skip it, Zara walking through DATE goes wrong like this: copy-pasting DATE without a dry-run.”

Exam tip

For DATE(): definition + a first job task + one failure.

DATE() — sample query

-- DATE()
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;

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

Short notes

DefDATE() — Zara uses it for Zara walking through DATE in a first job task.
RuleDATE() → one DATE step Zara can write from memory.
RememberDATE() + InnoDB (a first job task).
UseDATE() in a first job task (Zara walking through DATE).
TrapDATE() — copy-pasting DATE without a dry-run.
ExDATE() → Zara walking through DATE.

-- DATE() 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;

DATE()

DATE() — sample query

Short notes

Questions

DATE()

DATE() — sample query

Short notes

Questions