Table marinedb.photo_plot_layers_active
photo plot layers data entry

Generated by
SchemaSpy
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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_active.site_code FK_photo_plot_layers_active_field_event R
photo_plot_info_active.site_code FK_photo_plot_layers_active_info R
target_assemblage varchar 20
photo_plot_info_active.target_assemblage FK_photo_plot_layers_active_info R
quadrat_code varchar 6
photo_plot_info_active.quadrat_code FK_photo_plot_layers_active_info R
quadrat_location varchar 10
photo_plot_quadrat_locations.quadrat_location FK_photo_plot_layers_active_location R
survey_date date 10
field_events_active.survey_date FK_photo_plot_layers_active_field_event R
group_code varchar 8
field_events_active.group_code FK_photo_plot_layers_active_field_event R
photo_plot_group_species_active.group_code FK_photo_plot_layers_active_top_group_species R
top_layer varchar 6
photo_plot_group_species_active.species_code FK_photo_plot_layers_active_top_group_species R
bottom_layer varchar 6
photo_plot_group_species_active.species_code FK_photo_plot_layers_active_bottom_group_species R
qualifier_code varchar 6
photo_plot_qualifiers.qualifier_code FK_photo_plot_layers_active_qualifier R
method_code varchar 6
photo_plot_methods.method_code FK_photo_plot_layers_active_method R
create_date date 10
modify_date timestamp 19 current_timestamp()
data_type enum 5 test

Table contained 0 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
group_code + bottom_layer Performance Asc/Asc FK_photo_plot_layers_active_bottom_group_species
bottom_layer Performance Asc FK_photo_plot_layers_active_bottom_layer_codes
site_code + survey_date + group_code Performance Asc/Asc/Asc FK_photo_plot_layers_active_field_event
quadrat_location Performance Asc FK_photo_plot_layers_active_location
method_code Performance Asc FK_photo_plot_layers_active_method
qualifier_code Performance Asc FK_photo_plot_layers_active_qualifier
group_code + top_layer Performance Asc/Asc FK_photo_plot_layers_active_top_group_species
top_layer Performance Asc FK_photo_plot_layers_active_top_layer_codes

Close relationships  within of separation: