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Write A short note on temporary tables?
Temporary Tables - Temporary tables exists solely for a particular session, or whose data persists for the duration of the transaction. The temporary tables are commonly used to support specialized rollups or exact application processing requirements. Unlike a permanent table, a temporary table does not automatically allocate space while it is formed. Space will be dynamically allocated for the table as rows are inserted. The CREATE GLOBAL TEMPORARY TABLE command is used to form a temporary table in Oracle. CREATE GLOBAL TEMPORARY TABLE ( )ON COMMIT {PRESERVE|DELETE} ROWS;
Nested Queries Let us see some more complex queries in this section. Sub-queries: Some of the basic concerns of sub-queries are: A sub-query is a SELECT statemen
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Explain Record Based Logical Models? Record-Based logical Models: Also define data at the conceptual and view levels. Unlike object-oriented models, are used to state overall
how to prepare a data dictionary for online examination system for certified courses?
what is natural join?
What is the function of IO/M signal in the 8085? It is a status signal. It is used to differentiate among memory locations and I/O operations. When this signal is low (IO/M = 0
What is DML Query Langauge? Data Manipulation Language (DML) - A data manipulation language is a language in which enables users to access or manipulate data as organized throu
Consider a research paper submission process. The process starts when an author submits a draft research paper (the paper may have up to 3 authors) to the chair of the organizing c
What are the Overlapping elements Overlapping elements can be found by scanning all the elements in front of deleted element in priority list for the sheet and comparing them
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