SchemaSpy - Table marinedb.photo_plot_layers

photo plot layers data table

Generated by
SchemaSpy

Legend:

Primary key columns

Columns with indexes

Implied relationships

Excluded column relationships

< n > number of related tables

Column

Type

Size

Nulls

Auto

Default

Children

Parents

Comments

site_code

char

6

field_events.site_code	FK_photo_plot_layers_field_event R
photo_plot_info.site_code	FK_photo_plot_layers_info R

target_assemblage

varchar

20

photo_plot_info.target_assemblage

FK_photo_plot_layers_info R

quadrat_code

varchar

6

photo_plot_info.quadrat_code

FK_photo_plot_layers_info R

quadrat_location

varchar

10

photo_plot_quadrat_locations.quadrat_location

FK_photo_plot_layers_location R

survey_date

date

10

field_events.survey_date

FK_photo_plot_layers_field_event R

group_code

varchar

8

photo_plot_group_species.group_code	FK_photo_plot_layers_top_group_species R
field_events.group_code	FK_photo_plot_layers_field_event R

top_layer

varchar

6

photo_plot_group_species.species_code

FK_photo_plot_layers_top_group_species R

bottom_layer

varchar

6

photo_plot_group_species.species_code

FK_photo_plot_layers_bottom_group_species R

qualifier_code

varchar

6

photo_plot_qualifiers.qualifier_code

FK_photo_plot_layers_qualifier R

method_code

varchar

6

photo_plot_methods.method_code

FK_photo_plot_layers_method R

create_date

date

10

modify_date

timestamp

19

current_timestamp()

data_type

enum

5

test

Table contained 1,143,408 rows at Thu Apr 03 16:08 PDT 2025

Indexes:

Column(s)	Type	Sort	Constraint Name
site_code + target_assemblage + quadrat_code + quadrat_location + survey_date + group_code	Primary key	Asc/Asc/Asc/Asc/Asc/Asc	PRIMARY
bottom_layer	Performance	Asc	FK_photo_plot_bottom_layer_codes
group_code + bottom_layer	Performance	Asc/Asc	FK_photo_plot_layers_bottom_group_species
site_code + survey_date + group_code	Performance	Asc/Asc/Asc	FK_photo_plot_layers_field_event
quadrat_location	Performance	Asc	FK_photo_plot_layers_location
method_code	Performance	Asc	FK_photo_plot_layers_method
qualifier_code	Performance	Asc	FK_photo_plot_layers_qualifier
group_code + top_layer	Performance	Asc/Asc	FK_photo_plot_layers_top_group_species
top_layer	Performance	Asc	FK_photo_plot_top_layer_codes