121. What are JPQL and HQL?
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Spring Boot Interview Questions
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122. What are native queries?
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123. How do custom repository implementations work?
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124. What is @Query?
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125. How do derived query methods work?
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126. What are projections in Spring Data JPA?
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127. What is optimistic locking?
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128. What is pessimistic locking?
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129. What is @Version?
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130. What are JPA entity relationships?
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