TABLESVIEWSINDEXESSYNONYMSSEQUENCESTABLESPACES etc
Latest Answer : In Oracle DB Objects are Table View Indexes Sequences Used to generate primary key values Synonym ...
SQL*PLUS is a command line tool where as SQL and PL/SQL language interface and reporting tool. Its a command line tool that allows user to type SQL commands to be executed directly against an Oracle database.
Latest Answer : SQL keywords cannot be abbrevated but SQL*PLUS keywords can be abbrevated. ...
A bad answer is count them (SELECT COUNT(*) FROM table_name)A good answer is :-'By generating SQL to ANALYZE TABLE table_name COUNT STATISTICS by querying Oracle System Catalogues (e.g. USER_TABLES
Latest Answer : If you want to find the number of Rows in table SELECT COUNT(*) FROM EMP;This is valid query ...
Oracle does not allow a user to specifically locate tables, since that is a part of the function of the RDBMS. However, for the purpose of increasing performance, oracle allows a developer to create a
Latest Answer : Clustering is a method of storing tables that are intimately related and often joined together into the same area on disk. For example, instead of the BOOKSHELF table being in one section of the disk and the BOOKSHELF_AUTHOR table being somewhere else, ...
Oracle uses work area to execute SQL statements and store processing information PL/SQL construct called a cursor lets you name a work area and access its stored information A cursor is a mechanism used
Latest Answer : Oracle ueses the private area for excute SQL statements and store processing information. The private area is called as CONTEXT AREACURSOR: cursor is a handle or pointer to the context area. ...
PL/SQL declares a cursor implicitly for all SQL data manipulation statements, including quries that return only one row. However,queries that return more than one row you must declare an explicit cursor
Latest Answer : explicit ...
Cursor For Loop is a loop where oracle implicitly declares a loop variable, the loop index that of the same record type as the cursor's record.
Latest Answer : The cursor FOR loop is a shortcut to process explicit cursors. Implicit open, fetch, exit, and close occur. The record is implicitly declared. ...
A cursor variable is associated with different statements at run time, which can hold different values at run time. Static cursors can only be associated with one run time query. A cursor variable is reference
Using ORACLE PRECOMPILERS, SQL statements and PL/SQL blocks can be contained inside 3GL programs written in C,C++,COBOL,PASCAL, FORTRAN,PL/1 AND ADA.The Precompilers are known as Pro*C,Pro*Cobol,...This
Latest Answer : Hi !! PRAGMA is one of the Precompiers of Oracle ..Wht it does is similar to Pre compier Directives in C Lang.. Thanks&RegdsRamaKrishna.Yerra,TCS,Hyd,9989018508 ...
Oracle Call Interface is a method of accesing database from a 3GL program. Uses--No precompiler is required,PL/SQL blocks are executed like other DML statements. The OCI library provides-functions to parse
Latest Answer : The Oracle Call Interface (OCI) is a set of low-level APIs (Application Programming Interface Calls) used to interact with Oracle databases. It allows one to use operations like logon, execute, parse, fetch, etc. OCI programs are normally written in C ...
