Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?

642

How do I revert to an older version of wordpress?

202

Consider a scenario where you have two to three tables with thousand tuples in each of them. Now, if you have to perform a join operation between them will you choose to perform filtering of rows or transforming of rows first.

996

What is font style in excel?

653

How do you implement postback with a text box?

994

1. Defination of Contractor & sub contractor 2. In cash method of accounting can we claim TDS deducted on Advance Recevied from contractee.

2258

Is session method, asynchronous or synchronous?

371

Which dictionary tables and/or views would you look at to diagnose a locking issue?

1914

Q1.How depreciation deffer from depletion? Q2.show the main benefit from calculating and recording depreciation.

1917

What is service factory?

776

Please send me Sample papers OF National Informatics Centre (NIC) Vacency

2118

why we are using digital signals for I/O & how to measure this signals is getting or not ?

1993

What is the purpose of xml?

815

What type of flow measurement devices is best for slurries?

1097

Why cannot lambda forms in Python contain statements?

1121