What is row chaining?

What is row chaining?
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1 Answer

Answer :

In circumstances, all of the data for a row in a table may not be able to
fit in the same data block. When this occurs, the data for the row is
stored in a chain of data block (one or more) reserved for that
segment.
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Related questions

What is Row Chaining

Description : What is Row Chaining

Last Answer : The data of a row in a table may not be able to fit the same data block.Data for row is stored in a chain of data blocks .

What is Row Migration and Row Chaining?

Description : What is Row Migration and Row Chaining?

Last Answer : Row Migration refers to rows that were moved to another blocks due to an update making them too large to fit into their original blocks. Oracle will leave a forwarding pointer in the ... the INVALID_ROWS table which is created by the utlvalid.sql script (located in $ORACLE_HOME/rdbms/admin).

How would you determine who has added a row to a table?

Description : How would you determine who has added a row to a table?

Last Answer : Turn on fine grain auditing for the table.

Use the ADD_GROUP_ROW procedure to add a row to a static record group? I) TRUE II)FALSE

Description : Use the ADD_GROUP_ROW procedure to add a row to a static record group? I) TRUE II)FALSE

Last Answer : I) FALSE

What is the fastest way of accessing a row in a table ?

Description : What is the fastest way of accessing a row in a table ?

Last Answer : Using ROWID.CONSTRAINTS

Use the Add_group_row procedure to add a row to a static record group 1. true or false?

Description : Use the Add_group_row procedure to add a row to a static record group 1. true or false?

Last Answer : False

To execute row from being displayed that still use column in the row which property can be used?

Description : To execute row from being displayed that still use column in the row which property can be used?

Last Answer : Format trigger.

There are primarily two modes for an inference engine: forward chaining and backward chaining. a) True b) False

Description : There are primarily two modes for an inference engine: forward chaining and backward chaining. a) True b) False

Last Answer : a) True

Forward chaining systems are _____________ where as backward chaining systems are ___________ a) Goal-driven, goal-driven b) Goal-driven, data-driven c) Data-driven, goal-driven d) Data-driven, data-driven

Description : Forward chaining systems are _____________ where as backward chaining systems are ___________ a) Goal-driven, goal-driven b) Goal-driven, data-driven c) Data-driven, goal-driven d) Data-driven, data-driven

Last Answer : c) Data-driven, goal-driven

In a backward chaining system you start with the initial facts, and keep using the rules to draw new conclusions (or take certain actions) given those facts. a) True b) False

Description : In a backward chaining system you start with the initial facts, and keep using the rules to draw new conclusions (or take certain actions) given those facts. a) True b) False

Last Answer : b) False

Which problem can frequently occur in backward chaining algorithm? a) Repeated states b) Incompleteness c) Complexity d) Both Repeated states & Incompleteness

Description : Which problem can frequently occur in backward chaining algorithm? a) Repeated states b) Incompleteness c) Complexity d) Both Repeated states & Incompleteness

Last Answer : d) Both Repeated states & Incompleteness

Which algorithm are in more similar to backward chaining algorithm? a) Depth-first search algorithm b) Breadth-first search algorithm c) Hill-climbing search algorithm d) All of the mentioned

Description : Which algorithm are in more similar to backward chaining algorithm? a) Depth-first search algorithm b) Breadth-first search algorithm c) Hill-climbing search algorithm d) All of the mentioned

Last Answer : a) Depth-first search algorithm

What will backward chaining algorithm will return? a) Additional statements b) Substitutes matching the query c) Logical statement d) All of the mentioned

Description : What will backward chaining algorithm will return? a) Additional statements b) Substitutes matching the query c) Logical statement d) All of the mentioned

Last Answer : b) Substitutes matching the query

Which is mainly used for automated reasoning? a) Backward chaining b) Forward chaining c) Logic programming d) Parallel programming

Description : Which is mainly used for automated reasoning? a) Backward chaining b) Forward chaining c) Logic programming d) Parallel programming

Last Answer : c) Logic programming

Which algorithm will work backward from the goal to solve a problem? a) Forward chaining b) Backward chaining c) Hill-climb algorithm d) None of the mentioned

Description : Which algorithm will work backward from the goal to solve a problem? a) Forward chaining b) Backward chaining c) Hill-climb algorithm d) None of the mentioned

Last Answer : b) Backward chaining

How many possible sources of complexity are there in forward chaining? a) 1 b) 2 c) 3 d) 4

Description : How many possible sources of complexity are there in forward chaining? a) 1 b) 2 c) 3 d) 4

Last Answer : c) 3

Which knowledge base is called as fixed point? a) First-order definite clause are similar to propositional forward chaining b) First-order definite clause are mismatch to propositional forward chaining c) All of the mentioned d) None of the mentioned

Description : Which knowledge base is called as fixed point? a) First-order definite clause are similar to propositional forward chaining b) First-order definite clause are mismatch to propositional forward chaining c) All of the mentioned d) None of the mentioned

Last Answer : a) First-order definite clause are similar to propositional forward chaining

Which condition is used to cease the growth of forward chaining? a) Atomic sentences b) Complex sentences c) No further inference d) All of the mentioned

Description : Which condition is used to cease the growth of forward chaining? a) Atomic sentences b) Complex sentences c) No further inference d) All of the mentioned

Last Answer : c) No further inference

Greater accuracy in linear measurements, is obtained by (A) Tacheometry (B) Direct chaining (C) Direct taping (D) All the above

Description : Greater accuracy in linear measurements, is obtained by (A) Tacheometry (B) Direct chaining (C) Direct taping (D) All the above

Last Answer : (C) Direct taping

The chaining on sloping ground is (A) Easier along the falling gradient (B) Easier along the up gradient (C) Equally convenient along falling as well as up gradient (D) All the above

Description : The chaining on sloping ground is (A) Easier along the falling gradient (B) Easier along the up gradient (C) Equally convenient along falling as well as up gradient (D) All the above

Last Answer : (A) Easier along the falling gradient

While measuring a chain line between two stations and intervened by a raised ground (A) Vision gets obstructed (B) Chaining gets obstructed (C) Both vision and chaining get obstructed (D) All the above

Description : While measuring a chain line between two stations and intervened by a raised ground (A) Vision gets obstructed (B) Chaining gets obstructed (C) Both vision and chaining get obstructed (D) All the above

Last Answer : (A) Vision gets obstructed

The instrument which is used in plane tabling for obtaining horizontal and vertical distances directly without resorting to chaining, is known as (A) Plane alidade (B) Telescopic alidade (C) Clinometer (D) Tacheometer

Description : The instrument which is used in plane tabling for obtaining horizontal and vertical distances directly without resorting to chaining, is known as (A) Plane alidade (B) Telescopic alidade (C) Clinometer (D) Tacheometer

Last Answer : (B) Telescopic alidade

Pick up the correct statement from the following: (A) With both handles in his left hand, the chain man throws out the chain with his right hand and the second chain man assists him to free it from knots (B) The follower of the chaining operation should be more experienced than the leader (C) At the end of the tenth chain length, the two chain men meet and the ten arrows are handed over to the leader (D) All the above

Description : Pick up the correct statement from the following: (A) With both handles in his left hand, the chain man throws out the chain with his right hand and the second chain man assists him to free it from ... the two chain men meet and the ten arrows are handed over to the leader (D) All the above

Last Answer : (D) All the above

What is servlet Chaining ?

Description : What is servlet Chaining ?

Last Answer : Ans. Multiple servlets serving the request in chain.

Distance between two points is measured by (a) Pacing (b) Pedometer (c) Passometer (d) Chaining (e) All the above*

Description : Distance between two points is measured by (a) Pacing (b) Pedometer (c) Passometer (d) Chaining (e) All the above*

Last Answer : (e) All the above*

Define backward chaining.

Description : Define backward chaining.

Last Answer : This algorithm works backward from the goal, chaining through rules to find known facts that support the proof.

Write three types of obstacles in chaining with examples.

Description : Write three types of obstacles in chaining with examples. 

Last Answer : 1. Obstacle which can be chained across but cannot be ranged across. , Examples: Hill Intervening , rising ground. 2. Obstacle which can be ranged but cannot be chained across., Example: ... . 3. Obstacle which can be neither be ranged across not be chained across, Example: Building obstruction

A 20m chain was found to be 6cm too long after chaining a distance of 1059m. It was found to be 9cm too short after chaining at the end 1985m. If the chain was correct before commencement of work find the true distance.

Description : A 20m chain was found to be 6cm too long after chaining a distance of 1059m. It was found to be 9cm too short after chaining at the end 1985m. If the chain was correct before commencement of work find the true distance.

Last Answer : Given : Line ABC, AB=1059m, AC=1985m  L= 20m, No error at start, 0.06m too long at B,  0.09m too short  Find : True distance of AC = ? Solution : For part AB L = Length of chain= 20 m e = Average ... Total true distance of AC = True distance of (AB + BC)  = 1060.59 m + 922.52 m  = 1983.11 m

Describe stepping method of chaining on sloping ground.

Description : Describe stepping method of chaining on sloping ground.

Last Answer : 1. If A and B are the two points on sloping ground, for which horizontal distance is to be measured. 2. Unfold the chain. By touching handle to station A, stretch it up to maximum possible ... 6. Thus total horizontal distance on sloping ground is calculated as d(AB) = L1+L2+L3 in meters.

Explain how will you overcome the obstacles over river during chaining operation.

Description : Explain how will you overcome the obstacles over river during chaining operation.

Last Answer : A) river across the chain line. 1. Suppose AB is the chain line. Two points C & D are selected on this line on opposite banks of the river. 2. At C a perpendicular CE is erected and bisected at F. A perpendicular is ... ) X DF          CH=DF  = (CD/(CG-DF) )X DF        HG=CG-CH

Explain Direct method of chaining on sloping ground with neat skeetch.

Description : Explain Direct method of chaining on sloping ground with neat skeetch. 

Last Answer : While chaining on sloping ground, the horizontal distances can be computed by direct method i.e. By stepping. By stepping: It consist in measuring the distance in small horizontal lengths (e.g.L1). Let ... is continued in the correct line with point B. Then length of line AB=L1 +L2 +L3+L4

Explain with neat sketch method of stepping of chaining on sloping ground.

Description : Explain with neat sketch method of stepping of chaining on sloping ground.

Last Answer : Procedure : To measure the horizontal distance between points A & B on sloping ground following steps should be followed ( Refer above figure.) 1. Starting from point A, the chain is unfolded and ... . Finally calculate total chained distance as d(AB) = d(AP1) + d(P2P3) + d(P4P5)

A 20 m chain was found to be 10 cm too short after chaining 1000 m It was found to be 20 cm too short after chaining 1800 m. If the chain was correct before commencement of the work find the true distance.

Description : A 20 m chain was found to be 10 cm too short after chaining 1000 m It was found to be 20 cm too short after chaining 1800 m. If the chain was correct before commencement of the work find the true distance.  

Last Answer : Average error in chain for 1000 m length = (0 + 10) / 2 = 5 cm = 0.05 m too short True length up to 1000 m = (20 - 0.05) x 1000 / 20 = 997.5 m. Average error in chain from 1000 m to 1800 m length = (10 ... 1800 m length = (20 - 0.15) x 800 / 20 = 794.0 m. True distance = 997.5 + 794 = 1791.5 m.

Explain the process of chaining on sloping ground by stepping method with neat sketch.

Description : Explain the process of chaining on sloping ground by stepping method with neat sketch.

Last Answer : The procedure to measure horizontal distance between the points A and B on sloping ground is as follows. 1. Two persons-leader and follower are required for chaining. 2. The follower holds the end of chain at A. The leader goes ... between A and b L = AM, + MN' + NO' + OP' + PQ' + QB'

Explain in brief linear measurements using: {i) Chaining (ii) Digital Tape

Description : Explain in brief linear measurements using: {i) Chaining (ii) Digital Tape

Last Answer : i. Chaining:  a. Linear measurement with chain carried out by two chainmen-Leader and follower.  b. The follower keeps the chain handle at starting station point, holds firmly it and directs the ... is at right spot, press the button and tape measures, calculates and displays distance on screen.

Describe in brief obstacles in chaining.

Description : Describe in brief obstacles in chaining.

Last Answer : There are 3 types of obstacles 1. Obstacle to ranging 2. Obstacle to chaining 3. Obstacle to both ranging & chaining. 1) Obstacle to Ranging: The type of obstacle in which the ... type of obstacle the problem lies in prolonging the line beyond the obstacle & determining the distance across it.

Enlist the sources of error in chaining and state the precautions to be taken against error.

Description : Enlist the sources of error in chaining and state the precautions to be taken against error.

Last Answer : In general, the distance measurement obtained in the field will be in error. Errors in the distance measurement can arise from a number of sources: 1. Instrument errors: A chain may be faulty due to a defect ... confuse 10 m tag with 20 m tag. It should be avoided by noticing the 15 m tag.

Describe in brief process of chaining on sloping ground.

Description : Describe in brief process of chaining on sloping ground.

Last Answer : In direct method which is also known as stepping method horizontal distance is directly measured as shown in fig. Horizontal distance between A and B is required to be measured. Procedure: i) A ... iii) The next step start from the C and the method is continued till point B reached. 

Define 1)Ranging 2)Chaining

Description : Define 1)Ranging 2)Chaining

Last Answer : 1) Ranging The method of establishing intermediate points on a straight line between the two fixed points is known as ranging. 2)Chaining The method of measuring the distance with the chain or tape is called as Chaining.

Reasoning strategies used in expert systems include ............... (A) Forward chaining, backward chaining and problem reduction (B) Forward chaining, backward chaining and boundary mutation (C) Forward chaining, backward chaining and back propagation (D) Backward chaining, problem reduction and boundary mutation

Description : Reasoning strategies used in expert systems include ............... (A) Forward chaining, backward chaining and problem reduction (B) Forward chaining, backward chaining and boundary ... chaining, backward chaining and back propagation (D) Backward chaining, problem reduction and boundary mutation

Last Answer : (A) Forward chaining, backward chaining and problem reduction

Forward chaining systems are ............. where as backward chaining systems are ................ (A) Data driven, Data driven (B) Goal driven, Data driven (C) Data driven, Goal driven (D) Goal driven, Goal driven

Description : Forward chaining systems are ............. where as backward chaining systems are ................ (A) Data driven, Data driven (B) Goal driven, Data driven (C) Data driven, Goal driven (D) Goal driven, Goal driven

Last Answer : (C) Data driven, Goal driven 

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.