SQL · Theory

monthname()

Theory

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monthname()

Asha only reaches for monthname() when a monthname dry-run has to stay correct in a campus project.

monthname() on the board: one monthname step Asha can write from memory. Then say what a monthname dry-run looks like after.

Skip monthname() and only reciting the name of monthname shows up in a campus project.

monthname() shows up in a campus project. Name a monthname dry-run, not “a real-world scenario”.

monthname() trap — only reciting the name of monthname. Asha loses marks for that every viva.

monthname() is not a lonely heading. Asha ties it to a monthname dry-run.

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

Exam tip

Say monthname() in one breath, then one monthname step Asha can write from memory, then only reciting the name of monthname.

monthname() — sample query

-- monthname()
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;

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

Short notes

Defmonthname() — Asha uses it for a monthname dry-run in a campus project.
Rulemonthname() → one monthname step Asha can write from memory.
Remembermonthname() + the query planner (a campus project).
Usemonthname() in a campus project (a monthname dry-run).
Trapmonthname() — only reciting the name of monthname.
Exmonthname() → a monthname dry-run.

-- monthname() 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;

monthname()

monthname() — sample query

Short notes

Questions

monthname()

monthname() — sample query

Short notes

Questions