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1z0-595 PDF DEMO:

QUESTION NO: 1
When using a partitioned index on a spatially partitioned table, a first level of optimization is performed making use of SDO_ROOT_MBR in the spatial index metadata. What is this optimization called?
A. index elimination
B. partition pruning
C. hash indexing
D. partition flux
E. deterministic function selection
Answer: B
Explanation:
Spatial partition pruning is similar to the pruning the optimizer does, but it is based onlocation and does not require a partitioning key to be specified on the input query. When a user does a spatial query using SDO_FILTER, SDO_RELATE, or
SDO_WITHIN_DISTANCE, a query window specifies an area-of-interest. Normally, the minimum bounding rectangle around that area-of-interest is compared with the minimum bounding rectangles associated with geometries in a layer using fast searches into the spatial index. When a partitioned spatial index is used, each partition's index metadata includes a column called SDO_ROOT_MBR, which contains the minimum bounding rectangle around all of the data in that index partition. At query time, Spatial indexing examines the SDO_ROOT_MBR column of each partition, and if the MBR of the area-of- interest does not overlap the SDO_ROOT_MBR, spatial partition pruning will occur and the index associated with that partition will never be searched.
References: http://download.oracle.com/otndocs/products/spatial/pdf/spatial_wp10_bestprac.pdf, page 8

QUESTION NO: 2
The Spatial routing engine must have the following tables in its schema: EDGE, NODE,
PARTITION, and SIGN_POST. Which table will contain the name and numbers of the highway exists?
A. PARTITION
B. SIGN_POST
C. NODE
D. EDGE
Answer: B

QUESTION NO: 3
Which technique will allow multiple georaster objects to be loaded simultaneously when you use GDAL?
A. using the-multicommand-line parameter ofgdalwarp
B. using the-scalecommand-line parameter ofgdal_translate
C. creating multiple raster data tables and using the-multicommand-line parameter ofgdalwarp
D. building a process that creates multiple threads that rungdal_translate
Answer: A
Explanation:
Use the -multi option with gdalwarp to enable multithreading, as opposed to only multiple cores.
References: https://trac.osgeo.org/gdal/changeset/38196

QUESTION NO: 4
When creating a partitioned spatial index, which syntax parameter determines the number of parallel processes?
A. NUMCORES
B. DEGREE
C. NUMPROCESSORS
D. AFFINITY
E. PARALLEL_CPUs
Answer: B
Explanation:
Parallel query on multiple partition searching
The degree of parallelism is the value from the DEGREE column in the row for the index in the
USER_INDEXES view (that is, the value specified or defaulted for the PARALLEL keyword with the
CREATE INDEX, ALTER INDEX, or ALTER INDEX REBUILD statement).
References: https://docs.oracle.com/database/121/SPATL/using-partitioned-spatial- indexes.htm#SPATL586

QUESTION NO: 5
Which procedure can be used to validate and correct most geometry errors in an Oracle Spatial geometry?
A. SDO_MIGRATE.TO_CURRENT
B. SDO_GEOM.ALPHA_SHAPE
C. SDO_UTIL.RECTIFY_GEOMETRY
D. SDO_TUNE.QUALITY_DEGRADATION
E. SDO_CS.TRANSFORM
F. SDO_CS.VALIDATE_WKT
Answer: C
Explanation:
SDO_UTIL.RECTIFY_GEOMETRYfixes certain problems with the input geometry, and returns a valid geometry.
This function checks for the following problems that can make a geometry invalid, and fixes the problems in the returned geometry:
Duplicate vertices
Polygon boundary intersecting itself
Incorrect orientation of exterior or interior rings (or both) of a polygon
If the input geometry has any other problem that makes it invalid, the function raises an exception.
If the input geometry is valid, the function returns a geometry that is identical to the input geometry.

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1Z0-595 考試重點 & Oracle Spatial 11G Essentials 認證資料

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考試編碼:1z0-595
考試名稱:Oracle Spatial 11g Essentials
更新時間:2018-01-22
問題數量:77題
Oracle 1z0-595 證照指南

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軟體引擎

考試編碼:1z0-595
考試名稱:Oracle Spatial 11g Essentials
更新時間:2018-01-22
問題數量:77題
Oracle 1z0-595 權威認證

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在線測試引擎

考試編碼:1z0-595
考試名稱:Oracle Spatial 11g Essentials
更新時間:2018-01-22
問題數量:77題
Oracle 1z0-595 考試資訊

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1z0-595 真題材料

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