Database Administration Questions

Land is considered as an important resource because it is useful in producing many things. For example, in agriculture, land is used for cultivating the crop, in industrial use, it is used for constructing factories and to make products that we use.

XPath is an expressions to select a xml node in an XML document.

It allows the navigation on the XML document to the straight to the element where we need to reach and access the attributes.

A promise. 

The Promise made to somebody by you can be break but you cannot touch it.

Wide-mouth frog is the simplest known key distribution center (KDC) authentication protocol

The second would employ a comma, or semi-colon, and not a colon so it is not properly punctuated.

The third sentence would not be correct because it uses 'like', usually used for comparison. Since you are not comparing two questions, it would not be appropriate.

The fourth sentence has 'is' before the colon, which is a implies declaration and not listing. So, again, it would not be appropriate.

Hence, the first sentence, however, is punctuated correctly.

Configuration Management is a support for software in managing the different items in the product, and changes in them.

Data Control Language (DCL):-statements to take care of the security and authorization.

Examples:

1. GRANT


2. REVOKE