Start learning 50% faster. Sign in now
A LEFT JOIN retrieves all records from TableA and the matching records from TableB. If no match exists, the TableB fields are NULL. Filtering on TableB.id IS NULL ensures only those records from TableA with no match in TableB are selected. Why Other Options Are Incorrect: 1. INNER JOIN: Retrieves only matching records, not unmatched ones. 2. RIGHT JOIN: Retrieves unmatched records from TableB, not TableA. 3. FULL OUTER JOIN: Includes all unmatched records but does not isolate TableA exclusively. 4. NOT IN: Functional but less efficient than LEFT JOIN.
What does the letter 'S' stand for in the Indian Army's "E-SeHAT" module for veterans?
India’s first online taxi service owned by a State government was rolled out in which state?
Which of the following statements is/are not correct with reference to Mont Blanc:
It is the highest peak...
Which regulatory body has approved the stake acquisition in climate technologies' business of Emerson Electric Co by BCP Emerald Aggregator LP?
Which Indian port has been designated by the Ministry of Ports, Shipping, and Waterways to function as India's first transshipment port?
WWF-India’s Central Indian Satpuda Maikal Landscape (SML) sprawls across 19 districts of which of the following states?
A- Madhya Pradesh
...Which of the following tea estates and their location is not correctly matched:
The Armed Forces Medical Services (AFMS) recently signed an MoU with which institution for multidisciplinary research?
Among the following Indian states, which one has the widest continental shelf?
Union Home Minister Amit Shah launched the ‘Vibrant Villages Programme’ (VVP) in April 2023 in which district of Arunachal Pradesh?