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Cursor

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Cursor

Don’t start Cursor with jargon. Start with Riya walking through Cursor. That is the whole point.

Cursor order — meaning → one Cursor step Riya can write from memory → one limit. Dumping ten features helps nobody.

Skip Cursor and only reciting the name of Cursor shows up in lab hour.

Riya ships Cursor in lab hour. That is the use case worth saying.

If Riya walking through Cursor breaks under Cursor, check only reciting the name of Cursor first.

Cursor is not a lonely heading. Riya ties it to Riya walking through Cursor.

One breath for Cursor, then Riya walking through Cursor, then only reciting the name of Cursor. Sit down.

Exam tip

For Cursor: definition + lab hour + one failure.

Cursor — sample query

-- Cursor
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;

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

Short notes

DefCursor — Riya uses it for Riya walking through Cursor in lab hour.
RuleCursor → one Cursor step Riya can write from memory.
RememberCursor + an index (lab hour).
UseCursor in lab hour (Riya walking through Cursor).
TrapCursor — only reciting the name of Cursor.
ExCursor → Riya walking through Cursor.

-- Cursor 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;

Cursor

Cursor — sample query

Short notes

Questions

Cursor

Cursor — sample query

Short notes

Questions