Answer
WHERE filters rows that meet specified conditions, returning only relevant records.
Quick Answer
WHERE filters rows returned by SELECT, UPDATE, or DELETE - only rows matching the condition are included. Conditions use comparison operators (=, >, <, >=, <=, !=), logical operators (AND, OR, NOT), pattern matching (LIKE, ILIKE), NULL checks (IS NULL, IS NOT NULL), ranges (BETWEEN), and set membership (IN, NOT IN). WHERE is evaluated before GROUP BY.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ