Table: FLS_GEAR_DESCRIPTIONS

Southeast Fisheries Science Center
Entity (ENT) | ID: 7158 | Published / External
Created: 2008-02-28   |   Last Modified: 2021-05-06

Parent: Coastal Logbook Survey (Vessels)
Data Set (DS) | ID: 7144

ID: 7158
Entity (ENT)

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* » Title Table: FLS_GEAR_DESCRIPTIONS
Short Name FLS_GEAR_DESCRIPTIONS
* Status Completed
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* » Abstract

It contains a description of the gear used. Each gear characteristic that can be described is identified by a parameter and an associated measure. This affords the system complete flexibility in describing gear. The foreign key, GEAR_FISHED_KEY, links to the FLS_Gears_Fished table ensuring that the gear has been defined in that table. A unique key on GEAR_FISHED_KEY and GEAR_PARAMETER_CODE ensures that a parameter is described only once for each gear in the FLS_GEAR_FISHED table. An additional foreign key on GEAR_PARAMETER_CODE and GEAR_CLASS ensures that only the appropriate parameters for a gear are allowed (e.g., the parameter mesh size is not appropriate for the gear long line.)
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Loaded by batch 2103, 02-28-2008 14:10
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Keywords

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Thesaurus Keyword
None Gear
None Gear Descriptions
None Gear Parameters
   
   
   

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Entity Information

Entity Type Data Table
Active Version? Y
Alias  
Schema Name FLS
» Description

It contains a description of the gear used. Each gear characteristic that can be described is identified by a parameter and an associated measure. This affords the system complete flexibility in describing gear. The foreign key, GEAR_FISHED_KEY, links to the FLS_Gears_Fished table ensuring that the gear has been defined in that table. A unique key on GEAR_FISHED_KEY and GEAR_PARAMETER_CODE ensures that a parameter is described only once for each gear in the FLS_GEAR_FISHED table. An additional foreign key on GEAR_PARAMETER_CODE and GEAR_CLASS ensures that only the appropriate parameters for a gear are allowed (e.g., the parameter mesh size is not appropriate for the gear long line.)
Change Summary

Data Attributes

Attribute Summary

Score Req'd? PKey? » Name Data Storage Type Description
100 Yes Yes GEAR_DESCRIPTION_KEY NUMBER Sequence number automatically generated by the system to uniquely identify each row in the table. Since these keys are not data dependent, if any element of data is changed, the link to the other tables in the system are not broken.Validation:Managed by the database. Each row in the table must have a unique value.y
100 Yes No GEAR_FISHED_KEY NUMBER A link to the Gear Fished table. This key establishes the relationship between the gear that was used during the fishing trip and the the description of the gear. This key is used internally by the forms or screens and reports used to manipulate the data. It should not be necessary for the user to be familiar with this link.Having a separate table to manage the gear characteristics allows us to add gear parameters and even new gears to out logbook reports, without having to alter the tables that house the data.Validation:The foreign key enforces that the referenced record must be present in the Gear Fished table before it can be used in the Catch table. In other words, a gear must have been described before it can be associated with a description.
100 Yes No GEAR_PARAMETER_CODE VARCHAR2 Measurable characteristic of a gear such as line length, number of hooks, etc.Validation:The value must be a valid parameter code for a specified gear class. This is enforced through a foreign key link to the table FLS_GEAR_PARAMETER_CODES. Since this information is crucial (i.e., which characteristic of the gear are we describing) this column is mandatory and cannot be left empty.
100 Yes No GEAR_CLASS VARCHAR2 The code for the classification of the gear. This enables the program to check whether certain gear parameters are appropriate for that type of gear.The gear class is provided by the distribution programs when a particular gear is selected. The classes appear in the FLS_GEAR_CODES_NMFS table for each gear in the table.Validation:The domain called GEAR_CLASS ensures that only certain values are allowed in this field.
100 No No PARAMETER_VALUE VARCHAR2 Value of the parameter that is being measured.Validation:None. Information can be up to 15 characters in length.
100 No No PARAMETER_VALUE_MSU VARCHAR2 Identifies the measurement unit in which the parameter value was reported.Validation:The domain MEASUREMENT_UNIT ensures that only predefined codes are allowed into the system.(Note: If the PARAMETER_VALUE column is not empty, this column cannot be left blank.
100 No No GEARDESC_COMMENT VARCHAR2 A description of the gear that could not be coded, or additional effort information.Validation:None. Up to 200 characters can be entered into this column.

Attribute Details

Attribute Name GEAR_DESCRIPTION_KEY
Seq. Order 1
Data Storage Type NUMBER
Max Length 22
Min Length  
Required Yes
Primary Key Yes
Precision 10
Scale 0
Status Active
Description

Sequence number automatically generated by the system to uniquely identify each row in the table. Since these keys are not data dependent, if any element of data is changed, the link to the other tables in the system are not broken.Validation:Managed by the database. Each row in the table must have a unique value.y
General Data Type NUMBER
Unit of Measure  
Case Restriction  
Display Example  
Format Mask  
Null Value  
Null Value Meaning
Allowed Values  
Default Value  
Foreign Key Relations
Derivation
Validation Rules
Attribute Name GEAR_FISHED_KEY
Seq. Order 2
Data Storage Type NUMBER
Max Length 22
Min Length  
Required Yes
Primary Key No
Precision 10
Scale 0
Status Active
Description

A link to the Gear Fished table. This key establishes the relationship between the gear that was used during the fishing trip and the the description of the gear. This key is used internally by the forms or screens and reports used to manipulate the data. It should not be necessary for the user to be familiar with this link.Having a separate table to manage the gear characteristics allows us to add gear parameters and even new gears to out logbook reports, without having to alter the tables that house the data.Validation:The foreign key enforces that the referenced record must be present in the Gear Fished table before it can be used in the Catch table. In other words, a gear must have been described before it can be associated with a description.
General Data Type NUMBER
Unit of Measure  
Case Restriction  
Display Example  
Format Mask  
Null Value  
Null Value Meaning
Allowed Values  
Default Value  
Foreign Key Relations
Derivation
Validation Rules
Attribute Name GEAR_PARAMETER_CODE
Seq. Order 3
Data Storage Type VARCHAR2
Max Length 5
Min Length  
Required Yes
Primary Key No
Precision  
Scale  
Status Active
Description

Measurable characteristic of a gear such as line length, number of hooks, etc.Validation:The value must be a valid parameter code for a specified gear class. This is enforced through a foreign key link to the table FLS_GEAR_PARAMETER_CODES. Since this information is crucial (i.e., which characteristic of the gear are we describing) this column is mandatory and cannot be left empty.
General Data Type VARCHAR2
Unit of Measure  
Case Restriction  
Display Example  
Format Mask  
Null Value  
Null Value Meaning
Allowed Values  
Default Value  
Foreign Key Relations
Derivation
Validation Rules
Attribute Name GEAR_CLASS
Seq. Order 4
Data Storage Type VARCHAR2
Max Length 5
Min Length  
Required Yes
Primary Key No
Precision  
Scale  
Status Active
Description

The code for the classification of the gear. This enables the program to check whether certain gear parameters are appropriate for that type of gear.The gear class is provided by the distribution programs when a particular gear is selected. The classes appear in the FLS_GEAR_CODES_NMFS table for each gear in the table.Validation:The domain called GEAR_CLASS ensures that only certain values are allowed in this field.
General Data Type VARCHAR2
Unit of Measure  
Case Restriction  
Display Example  
Format Mask  
Null Value  
Null Value Meaning
Allowed Values  
Default Value  
Foreign Key Relations
Derivation
Validation Rules
Attribute Name PARAMETER_VALUE
Seq. Order 5
Data Storage Type VARCHAR2
Max Length 15
Min Length  
Required No
Primary Key No
Precision  
Scale  
Status Active
Description

Value of the parameter that is being measured.Validation:None. Information can be up to 15 characters in length.
General Data Type VARCHAR2
Unit of Measure  
Case Restriction  
Display Example  
Format Mask  
Null Value  
Null Value Meaning
Allowed Values  
Default Value  
Foreign Key Relations
Derivation
Validation Rules
Attribute Name PARAMETER_VALUE_MSU
Seq. Order 6
Data Storage Type VARCHAR2
Max Length 5
Min Length  
Required No
Primary Key No
Precision  
Scale  
Status Active
Description

Identifies the measurement unit in which the parameter value was reported.Validation:The domain MEASUREMENT_UNIT ensures that only predefined codes are allowed into the system.(Note: If the PARAMETER_VALUE column is not empty, this column cannot be left blank.
General Data Type VARCHAR2
Unit of Measure  
Case Restriction  
Display Example  
Format Mask  
Null Value  
Null Value Meaning
Allowed Values  
Default Value  
Foreign Key Relations
Derivation
Validation Rules
Attribute Name GEARDESC_COMMENT
Seq. Order 7
Data Storage Type VARCHAR2
Max Length 200
Min Length  
Required No
Primary Key No
Precision  
Scale  
Status Active
Description

A description of the gear that could not be coded, or additional effort information.Validation:None. Up to 200 characters can be entered into this column.
General Data Type VARCHAR2
Unit of Measure  
Case Restriction  
Display Example  
Format Mask  
Null Value  
Null Value Meaning
Allowed Values  
Default Value  
Foreign Key Relations
Derivation
Validation Rules
Attribute Name
Seq. Order
Data Storage Type
Max Length
Precision
Scale
Required
Primary Key
Status
Description
General Data Type
Case Restriction
Format Mask
Null Value
Null Value Meaning
Min Length
Unit of Measure
Display Example
Allowed Values
Default Value
Foreign Key Relations
Derivation
Validation Rules
Attribute Name
Seq. Order
Data Storage Type
Max Length
Precision
Scale
Required
Primary Key
Status
Description
General Data Type
Case Restriction
Format Mask
Null Value
Null Value Meaning
Min Length
Unit of Measure
Display Example
Allowed Values
Default Value
Foreign Key Relations
Derivation
Validation Rules
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Seq. Order
Data Storage Type
Max Length
Precision
Scale
Required
Primary Key
Status
Description
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Catalog Details

Catalog Item ID 7158
Metadata Record Created By Lee M Weinberger
Metadata Record Created 2008-02-28 14:10+0000
Metadata Record Last Modified By Lee M Weinberger
» Metadata Record Last Modified 2021-05-06 22:24+0000
Metadata Record Published 2021-05-06
Owner Org SEFSC
Metadata Publication Status Published Externally
Do Not Publish? N
Metadata Workflow State Published / External
Metadata Last Review Date  
Metadata Review Frequency 1 Year
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