A pychaitrist gives medicine to treat the patient where as phycho-analyst tries to decide the condition and treat without medication. A pshychiatrist is capable of writing prescription whereas a phycho-analyst may recommand a pshychiatrist.

A database index is a data structure that improves the speed of operations in a table. Indices can be created using one or more columns, providing the basis for both rapid random lookups and efficient ordering of access to records. The disk space required to store the index is typically less than the storage of the table (since indices usually contain only the key-fields according to which the table is to be arranged, and excludes all the other details in the table), yielding the possibility to store indices into memory from tables that would not fit into it. In a relational databasean index is a copy of part of a table. Some databases extend the power of indexing by allowing indices to be created on functions or expressions. For example, an index could be created on upper(last_name), which would only store the uppercase versions of the last_name field in the index. Another option sometimes supported is the use of "filtered" indices, where index entries are created only for those records that satisfy some conditional expression. A further aspect of flexibility is to permit indexing on user-defined functions, as well as expressions formed from an assortment of built-in functions.

10.5 DAYS(11)

4DAYS.

Fill 5 quarts pail and use that water to fill the 3 quarts pail. now there are 2 quarts in the 5 quart pail. repeat this twice to get 4 quarts.

If there is no extra pail available to hold these 2 quarts + 2 quarts, then the following is the solution.

Fill the 5 quart pail and pour it into the 3 quart pail. now there are 2 quarts remaining in the 5 quart pail. empty the 3 quart pail and pour these 2 quarts into the 3 quarts pail. now the 3 quart pail is 1 less to be filled up. now fill the 5 quarts pail and pour 1 quart into the 3 quarts pail to fill it. the 5 quarts pail has 4 quarts in it now.

SQLServer.NET data provider is high-speed and robust, but requires SQL Server license purchased from Microsoft. OLE-DB.NET is universal for accessing other sources, like Oracle, DB2, Microsoft Access and Informix.  OLE-DB.NET is a .NET layer on top of the OLE layer, so it's not as fastest and efficient as SqlServer.NET.