Explain the difference between mysql_connect and mysql_pconnect?

480

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What is array explain it?

453

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What is repository info. Systems?

611

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When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<

1679

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Explain how to parse a datetime string?

506

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I have an elder brother who is married and settled in USA.Around 2 1/2years back even he had gone for his masters. I would be appearing for Visa soon. I have got acceptance fron Wayne state Univ for masters in biotechnology.What should my answer be when this question is raised. Would my case become more critical? please help

1553

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How to convert a single column values 1 2 3 4 to single row of 4 columns ? And vice-versa

653

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What is html4?

501

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When using mercury to recover very, fine gold from ore, define what is the best way to separate the gold laden mercury from the ore?

546

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How do pointers work?

703

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Is sql database free?

529

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what is the transiant condition in alternator? and how it can be prevanted?

1505

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How do I change the max connections in mysql?

463

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what is the rate of vat,cst,in mumbai

1216

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What are isotopes?

656

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