Table: `ndb.uraniumseries`#

Description#

No description available in database.

TODO: Expand this description with: - What data does this table store? - What is the business/research purpose? - How is this data collected or generated? - Are there any important caveats or data quality issues?

Table Structure#

Schema: ndb | Table Comment: No description available

Statistics#

Metric	Value
Row Count	619
Total Size	112 kB
Table Size	72 kB
Indexes Size	0 bytes

Relationships#

Foreign Keys:

decayconstantid → decayconstants.decayconstantid
geochronid → geochronology.geochronid

Referenced By:

TODO: Document which tables reference this table (will be auto-detected in validation).

Data Dictionary#

Column	Type	Nullable	Default	Constraints
`geochronid`	integer	✓	`-`	FOREIGN KEY
`decayconstantid`	integer	✓	`-`	FOREIGN KEY
`ratio230th232th`	numeric	✓	`-`	-
`ratiouncertainty230th232th`	numeric	✓	`-`	-
`activity230th238u`	numeric	✓	`-`	-
`activityuncertainty230th238u`	numeric	✓	`-`	-
`activity234u238u`	numeric	✓	`-`	-
`activityuncertainty234u238u`	numeric	✓	`-`	-
`iniratio230th232th`	numeric	✓	`-`	-
`iniratiouncertainty230th232th`	numeric	✓	`-`	-

TODO: Review column descriptions and add comments where missing.

Usage Examples#

Example 1: Basic Selection#

-- Get recent records from uraniumseries
SELECT *
FROM uraniumseries
ORDER BY geochronid DESC
LIMIT 10;

Purpose: Retrieve the 10 most recent records from uraniumseries

Example 2: Count Records#

-- Count total records
SELECT COUNT(*) as total_records
FROM uraniumseries;

Purpose: Get the total number of records in uraniumseries

Example 3: Join with decayconstants#

-- Join with related table
SELECT 
    t1.*,
    t2.*
FROM uraniumseries t1
INNER JOIN decayconstants t2 
    ON t1.decayconstantid = t2.decayconstantid
LIMIT 100;

Purpose: Retrieve uraniumseries records with related data from decayconstants

Example 4: Aggregate Data#

-- Aggregate records by decayconstantid
SELECT 
    decayconstantid,
    COUNT(*) as count
FROM uraniumseries
GROUP BY decayconstantid
ORDER BY count DESC
LIMIT 10;

Purpose: Count records grouped by decayconstantid

TODO: Add more specific examples relevant to common research questions or operational tasks.

Data Quality Notes#

TODO: Document: - Known data quality issues - Validation rules - Expected data ranges - Update frequency and mechanisms - Any ETL processes that populate this table

Maintenance#

Data Owner: TODO: Assign owner
Update Frequency: TODO: Document frequency
Last Major Schema Change: TODO: Document when schema last changed

Table: ndb.uraniumseries#