What is an Extension of entity type?

What is an Extension of entity type?
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1 Answer

Answer :

The collections of entities of a particular entity type are grouped together into an entity set.
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Related questions

What is an Entity type?

Description : What is an Entity type?

Last Answer : It is a collection (set) of entities that have same attributes.

ON WHICH ENTITY IS THE CROSS-VALIDATION RULE APPLICABLE?

Description : ON WHICH ENTITY IS THE CROSS-VALIDATION RULE APPLICABLE?

Last Answer : - It’s a feature of Key flexfield, applicable on Value Sets. 

ON WHICH ENTITY IS A SECURITY RULE APPLICABLE?

Description : ON WHICH ENTITY IS A SECURITY RULE APPLICABLE?

Last Answer : - It’s a feature of Key flexfield, applicable on Value Sets. 

A dominant entity is the entity a) on the N side in a 1 : N relationship b) on the 1 side in a 1 : N relationship c) on either side in a 1 : 1 relationship d) nothing to do with 1 : 1 or 1 : N relationship

Description : A dominant entity is the entity a) on the N side in a 1 : N relationship b) on the 1 side in a 1 : N relationship c) on either side in a 1 : 1 relationship d) nothing to do with 1 : 1 or 1 : N relationship

Last Answer : d) nothing to do with 1 : 1 or 1 : N relationship

In mapping of ERD to DFD a) entities in ERD should correspond to an existing entity/store in DFD b) entity in DFD is converted to attributes of an entity in ERD c) relations in ERD has 1 to 1 correspondence to processes in DFD d) relationships in ERD has 1 to 1 correspondence to flows in DFD

Description : In mapping of ERD to DFD a) entities in ERD should correspond to an existing entity/store in DFD b) entity in DFD is converted to attributes of an entity in ERD c) relations in ERD has 1 to 1 correspondence to processes in DFD d) relationships in ERD has 1 to 1 correspondence to flows in DFD

Last Answer : a) entities in ERD should correspond to an existing entity/store in DFD

What is Weak Entity set?

Description : What is Weak Entity set?

Last Answer : An entity set may not have sufficient attributes to form a primary key, and its primary key compromises of its partial key and primary key of its parent entity, then it is said to be Weak Entity set.

What is an Entity set?

Description : What is an Entity set?

Last Answer : It is a collection of all entities of particular entity type in the database.

What is an Entity?

Description : What is an Entity?

Last Answer : It is a ‘thing’ in the real world with an independent existence.

What is an Entity?

Description : What is an Entity?

Last Answer : An entity is a business object represents a group or category of data.

Explain the following file extension related to library?

Description : Explain the following file extension related to library?

Last Answer : .pll,.lib,.pld The library pll files is a portable design file comparable to an fmb form file The library lib file is a plat form specific, generated library file comparable to a fmx form file The pld file is Txt format file and can be used for source controlling your library files Parameter

Write the Abbreviation for the following File Extension 1. FMB 2. MMB 3. PLL?

Description : Write the Abbreviation for the following File Extension 1. FMB 2. MMB 3. PLL?

Last Answer : FMB ----- Form Module Binary. MMB ----- Menu Module Binary. PLL ------ PL/SQL Library Module Binary.

Name the two files that are created when you generate the form give the filex extension ?

Description : Name the two files that are created when you generate the form give the filex extension ?

Last Answer : INP (Source File) FRM (Executable File)

What is extension and intension?

Description : What is extension and intension?

Last Answer : Extension - It is the number of tuples present in a table at any instance. This is time dependent. Intension - It is a constant value that gives the name, structure of table and the constraints laid on it

If you had to choose, who'd you believe to have more power, in the sense of the extension of possible things that the entity would do? The aliens or the dead?

Description : If you had to choose, who'd you believe to have more power, in the sense of the extension of possible things that the entity would do? The aliens or the dead?

Last Answer : The aliens of course!

The value recorded in system.last_record variable is of type

Description : The value recorded in system.last_record variable is of type

Last Answer : a. Number b. Boolean c. Character. ? b. Boolean.

What type of index should you use on a fact table?

Description : What type of index should you use on a fact table?

Last Answer : A Bitmap index.

Give the two types of tables involved in producing a star schema and the type of data they hold.

Description : Give the two types of tables involved in producing a star schema and the type of data they hold.

Last Answer : Fact tables and dimension tables. A fact table contains measurements while dimension tables will contain data that will help describe the fact tables.

What is difference between CHAR and VARCHAR2 ? What is the maximum SIZE allowed for each type ?

Description : What is difference between CHAR and VARCHAR2 ? What is the maximum SIZE allowed for each type ?

Last Answer : CHAR pads blank spaces to the maximum length. VARCHAR2 does not pad blank spaces. For CHAR it is 255 and 2000 for VARCHAR2.

What should be the return type for a cursor variable.Can we use a scalar data type as return type?

Description : What should be the return type for a cursor variable.Can we use a scalar data type as return type?

Last Answer : The return type for a cursor must be a record type.It can be declared explicitly as a user-defined or %ROWTYPE can be used. eg TYPE t_studentsref IS REF CURSOR RETURN students%ROWTYPE

What is difference between % ROWTYPE and TYPE RECORD ?

Description : What is difference between % ROWTYPE and TYPE RECORD ?

Last Answer : % ROWTYPE is to be used whenever query returns a entire row of a table or view. TYPE rec RECORD is to be used whenever query returns columns of different table or views and variables. E.g. ... emp ename %type ); e_rec emp% ROWTYPE cursor c1 is select empno,deptno from emp; e_rec c1 %ROWTYPE.

What are % TYPE and % ROWTYPE ? What are the advantages of using these over datatypes?

Description : What are % TYPE and % ROWTYPE ? What are the advantages of using these over datatypes?

Last Answer : % TYPE provides the data type of a variable or a database column to that variable. % ROWTYPE provides the record type that represents a entire row of a table or view or columns selected in ... database definition of a column in a table changes, the data type of a variable changes accordingly.

Explain the two type of Cursors ?

Description : Explain the two type of Cursors ?

Last Answer : There are two types of cursors, Implicit Cursor and Explicit Cursor. PL/SQL uses Implicit Cursors for queries. User defined cursors are called Explicit Cursors. They can be declared and used.

What are the different type of a record group?

Description : What are the different type of a record group?

Last Answer : Query record group Static record group Non query record group

What are the type of User Exits ?

Description : What are the type of User Exits ?

Last Answer : ORACLE Precompliers user exits OCI (ORACLE Call Interface) Non-ORACEL user exits. Page :

When do you use data parameter type?

Description : When do you use data parameter type?

Last Answer : When the value of a data parameter being passed to a called product is always the name of the record group defined in the current form. Data parameters are used to pass data to produts invoked with the run_product built-in subprogra

What are the various type of snapshots?

Description : What are the various type of snapshots?

Last Answer : Simple and Complex.

What are the different type of Segments ?

Description : What are the different type of Segments ?

Last Answer : Data Segment, Index Segment, Rollback Segment and Temporary Segment.

What are the type of Synonyms?

Description : What are the type of Synonyms?

Last Answer : There are two types of Synonyms Private and Public.

What are the different absence type patterns available in Fusion Absence Management?

Description : What are the different absence type patterns available in Fusion Absence Management?

Last Answer : An absence pattern contains a predefined set of rules that you can use as a starting point to create an absence type. The pattern that you select determines whether special fields ... patterns available in Fusion Absence Management. ∙Illness or injury ∙Childbirth or placement ∙Generic absence

What is degree of Relationship type?

Description : What is degree of Relationship type?

Last Answer : It is the number of entity type participating.

What is Relationship type?

Description : What is Relationship type?

Last Answer : Relationship type defines a set of associations or a relationship set among a given set of entity types.

A Column is having many repeated values which type of index you should create on this column, if you have to?

Description : A Column is having many repeated values which type of index you should create on this column, if you have to?

Last Answer : For example, assume there is a motor vehicle database with numerous low-cardinality columns such as car_color, car_make, car_model, and car_year. Each column contains less than 100 distinct values by themselves, and a b tree index would be fairly useless in a database of 20 million vehicles.

What type of indexes are available in Oracle?

Description : What type of indexes are available in Oracle?

Last Answer : There are many index types within Oracle: B*Tree Indexes - common indexes in Oracle. They are similar construct to a binary tree; they provide fast access by key, to an individual row or range of ... They allow data to be sorted from big to small (descending) instead of small to big (ascending).

SQL> SELECT * FROM MY_SCHEMA.MY_TABLE; SP2-0678: Column or attribute type cannot be displayed by SQL*Plus Why I’m getting this error?

Description : SQL> SELECT * FROM MY_SCHEMA.MY_TABLE; SP2-0678: Column or attribute type cannot be displayed by SQL*Plus Why I’m getting this error?

Last Answer : The table has a BLOB column.

. ………………… is a special type of integrity constraint that relates two relations & maintains consistency across the relations. A) Entity Integrity Constraints B) Referential Integrity Constraints

Description : . ………………… is a special type of integrity constraint that relates two relations & maintains consistency across the relations. A) Entity Integrity Constraints B) Referential Integrity Constraints

Last Answer : B) Referential Integrity

Which if the following is not the type of data integrity. A) Key integrity B) Domain integrity C) Entity integrity D) Referential integrity

Description : Which if the following is not the type of data integrity. A) Key integrity B) Domain integrity C) Entity integrity D) Referential integrity

Last Answer : A) Key integrity

Based on the cardinality ratio and participation ............... associated with a relationship type, choose either the Foreign Key Design, the Cross Referencing Design or Mutual Referencing Design. (A) Entity (B) Constraints (C) Rules (D) Keys

Description : Based on the cardinality ratio and participation ............... associated with a relationship type, choose either the Foreign Key Design, the Cross Referencing Design or Mutual Referencing Design. (A) Entity (B) Constraints (C) Rules (D) Keys

Last Answer : (B) Constraints

An ER Model includes I. An ER diagram portraying entity types. II. Attributes for each entity type III. Relationships among entity types. IV. Semantic integrity constraints that reflects the business rules about data not captured in the ER diagram. (A) I, II, III & IV (B) I&IV (C) I, II & IV (D) I & III

Description : An ER Model includes I. An ER diagram portraying entity types. II. Attributes for each entity type III. Relationships among entity types. IV. Semantic integrity constraints that reflects the business rules about data not ... ; IV (B) I&IV (C) I, II & IV (D) I & III

Last Answer : (A) I, II, III & IV

Specialization Lattice stands for (A) An entity type can participate as a subclass in only one specialization. (B) An entity type can participate as a subclass in more than one specialization. (C) An entity type that can participate in one specialization. (D) An entity type that can participate in one generalization.

Description : Specialization Lattice stands for (A) An entity type can participate as a subclass in only one specialization. (B) An entity type can participate as a subclass in more than one specialization. ... can participate in one specialization. (D) An entity type that can participate in one generalization.

Last Answer : (B) An entity type can participate as a subclass in more than one specialization.

Which of the following provides the best description of an entity type? (A) A specific concrete object with a defined set of processes (e.g. Jatin with diabetes) (B) A value given to a particular attribute (e.g. height-230 cm) (C) A thing that we wish to collect data about zero or more, possibly real world examples of it may exist. (D) A template for a group of things with the same set of characteristics that may exist in the real world

Description : Which of the following provides the best description of an entity type? (A) A specific concrete object with a defined set of processes (e.g. Jatin with diabetes) (B) A value given to a ... template for a group of things with the same set of characteristics that may exist in the real world

Last Answer : Answer: D

What does "jumps off the screen" mean?

Description : What does "jumps off the screen" mean?

Last Answer : answer:AMD is a relatively small manufacturer but well established in the industry. In this context, AMD jumps off the screen at the guy doing the research into acquiring companies for ... chip manufacturing division, but AMD is the one that really stands out from an acquisition perspective.

How to add conditions in select statement in oracle?

Description : How to add conditions in select statement in oracle?

Last Answer : Just add the decode

How can I dump an oracle schema to a LOCAL file over a network connection from sqlplus?

Description : How can I dump an oracle schema to a LOCAL file over a network connection from sqlplus?

Last Answer : By connecting and spooling are you excluding the exp/imp commands (or expdb/impdb in 10g)?

What are the two ways to incorporate images into a oracle forms application?

Description : What are the two ways to incorporate images into a oracle forms application?

Last Answer : Boilerplate Images Image_items

Can one export a subset of a table? (for DBA

Description : Can one export a subset of a table? (for DBA

Last Answer : From Oracle8i one can use the QUERY= export parameter to selectively unload a subset of the data from a table. Look at this example: exp scott/tiger tables=emp query=\"where deptno=10\"

What are the types of visual attribute settings?

Description : What are the types of visual attribute settings?

Last Answer : Custom Visual attributes Default visual attributes Named Visual attributes. Window

How does one use the import/export utilities? (for DBA

Description : How does one use the import/export utilities? (for DBA

Last Answer : Look for the "imp" and "exp" executables in your $ORACLE_HOME/bin directory. One can run them interactively, using command line parameters, or using parameter files. Look at the imp/exp parameters ... and export data with the "Schema Manager" GUI that ships with Oracle Enterprise Manager (OEM).

what is a display item?

Description : what is a display item?

Last Answer : Display items are similar to text items but store only fetched or assigned values. Operators cannot navigate to a display item or edit the value it contains.

What is import/export and why does one need it? (for DBA

Description : What is import/export and why does one need it? (for DBA

Last Answer : The Oracle export (EXP) and import (IMP) utilities are used to perform logical database backup and recovery. They are also used to move Oracle data from one machine, database or schema to ... corruption. Ensure that all the data can be read. . Transporting tablespaces between databases . Etc.

Are there any troubleshooting tips for OEM? (for DBA

Description : Are there any troubleshooting tips for OEM? (for DBA

Last Answer : . Create the OEM repository with a user (which will manage the OEM) and store it in a tablespace that does not share any data with other database users. It is a bad practice to create ... successfully. Check the log to see the results of the execution rather than relying on this status.