SQL · Theory

Not Like Operator

Theory

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Not Like Operator

Not Like Operator is a SQL idea you prove with a Not Like Operator dry-run, not with a slogan.

Not Like Operator order: meaning → one Not Like Operator step Vikram can write from memory → one limit. Dumping ten features helps nobody.

Skip Not Like Operator and copy-pasting Not Like Operator without a dry-run shows up in a viva board.

Use Not Like Operator when a Not Like Operator dry-run must stay clear. If a simpler SQL step works, use that instead.

Don’t do this with Not Like Operator: copy-pasting Not Like Operator without a dry-run. Interviewers spot it in ten seconds.

After Not Like Operator, Vikram should still remember copy-pasting Not Like Operator without a dry-run.

Viva for Not Like Operator: what it is → one Not Like Operator step Vikram can write from memory → the mistake (copy-pasting Not Like Operator without a dry-run).

Exam tip

Board: a Not Like Operator dry-run. Dry-run Not Like Operator. Name the trap: copy-pasting Not Like Operator without a dry-run.

Not Like Operator — sample query

CREATE TABLE products (id INTEGER PRIMARY KEY, name TEXT, price REAL);
INSERT INTO products VALUES (1, 'Pen', 10), (2, 'Book', 200), (3, 'Bag', 50);
SELECT * FROM products
WHERE price BETWEEN 20 AND 150 AND name LIKE 'B%';

Not Like Operator — wHERE combines predicates with AND/OR; LIKE does pattern match.

Short notes

DefNot Like Operator — Vikram uses it for a Not Like Operator dry-run in a viva board.
RuleNot Like Operator → one Not Like Operator step Vikram can write from memory.
RememberNot Like Operator + InnoDB (a viva board).
UseNot Like Operator in a viva board (a Not Like Operator dry-run).
TrapNot Like Operator — copy-pasting Not Like Operator without a dry-run.
ExNot Like Operator → a Not Like Operator dry-run.

CREATE TABLE products (id INTEGER PRIMARY KEY, name TEXT, price REAL); INSERT INTO products VALUES (1, 'Pen', 10), (2, 'Book', 200), (3, 'Bag', 50); SELECT * FROM products WHERE price BETWEEN 20 AND 150 AND name LIKE 'B%';

Not Like Operator

Not Like Operator — sample query

Short notes

Questions

Not Like Operator

Not Like Operator — sample query

Short notes

Questions