Select query optimisation

1392

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Sy index and sy tabix

1408

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Static and instance variable and method with live example. Why and when to use

1462

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Can a constructor be declared private? If yes then in which scenario?

1426

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What is singleton pattern in OOPS?

1489

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What is an interface? In what scenario we use interface? What is the difference between abstract class and interface?

1393

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Can a constructor be redefined?

1383

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If A is the super class of B. And both the classes have constructor. We create an object of class B. Then which constructor will be called? If both then in which order?

1417

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What is a persistent class?

1468

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What are the parameter types for a method?

1507

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What is the difference between RETURNING and CHANGING parameters for a method?

1776

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What is pass by value and what is pass by reference? Which is better?

1409

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What are secondary indexes. How can we know which index is being used in a select query?

1465

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What are multiple use BADIS?

1511

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Can we control the sequence in which multiple implementations of a multiple use BADI are called? If yes, how?

1370

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