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Explain the utilities which help the DBA to manage the database?
Every DBA uses database utilities to maintain and control their databases. But there is a lot of confusion within the field as to what, exactly, is a database utility. There are a many of definitions floating around out there. DBAs constantly refer to utilities, tools, solutions, and suites.
So, first of all, let's be clear on what a utility is and what is a "tool" or "solution." A utility is generally a single reason program for moving and/or verifying database pages; examples involves LOAD, CHECK, REORG, UNLOAD, COPY, and RECOVER. A database tool is a multi-functioned program designed to simplify database monitoring, management, and/or administrative tasks. A solution is a synergistic group of tools and utilities designed to work together to address a customer's business issue. A suite is a group of tools which are sold together, but are not necessarily integrated to work along with each other in any way. Of course, these are only my definitions. But there are meaningful definitions which creates it easier to discuss DBA products and programs
Question: This form represents one of a number used for each sailing of a range of boats. A passenger may go on many sailings and will have the same passenger number for each.
List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization
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Saving Derived Attributes to Avoid Re-computation Data that is derived from other data should be stored in the computed form to avoid re-computation. For this, we could define
1. Create a subroutine that does the remote blast on the file protein.fa. 2. Pass that returned files from the blast to another subroutine that parses the output and sends it to
OBJECTIVES After going through this unit you should be capable to: Explain the File Based system and its limitations; Explain the structure of DBMS; Explain the
Describe an data dictionary? A data dictionary is a data structure which keeps meta data about the structure of the database ie. the schema of the database.
What are the factors to be taken into account when choosing a RAID level? A) Monetary cost of extra disk storage requirements. B) Performance requirements in terms of number
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System level permissions : With the use of data dictionary you can view them. Let us take the table name as user_sys_privs (used in oracle). DESCRIBE USER_SYS_PRI
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