I want to control database connections in my program and want that only one thread should be able to make database connection at a time. How can I implement this logic?

632

if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

1525

Name some companies that are already using Spark Streaming?

168

What are custom fields in wordpress?

113

How do you set up a table of contents in word?

312

What is a persistence context?

140

How you develop a method in HPLC?

2073

What is correlation in context of biztalk server? : biztalk server

506

Hi, Anybody knows about Hexaware company..

1664

What is the difference between declaring a variable by constant keyword and #define ing that variable?

2681

What is the function of f12?

309

Explain how can I read and write comma-delimited text?

638

How to convert the Unit for 'Distance' (The value from one Unit to another).

1430

What are the costs and benefits of using exceptions?

532

What is data structure explain in detail?

502