| Query goal: | Find base tables that have more than one column with Boolean type. |
| Query type: | General (Overview of some aspect of the database.) |
| Query license: | MIT License |
| Data source: | INFORMATION_SCHEMA only |
| SQL query: | Click on query to copy it
SELECT table_schema, table_name, Count(*) AS nr_of_boolean_columns FROM INFORMATION_SCHEMA.columns WHERE data_type~*'bool' AND (table_schema, table_name) IN (SELECT table_schema, table_name FROM INFORMATION_SCHEMA.tables WHERE table_type='BASE TABLE') AND table_schema NOT IN (SELECT schema_name FROM INFORMATION_SCHEMA.schemata WHERE schema_name<>'public' AND schema_owner='postgres' AND schema_name IS NOT NULL) GROUP BY table_schema, table_name HAVING Count(*)>1 ORDER BY Count(*) DESC; |
| Collection name | Collection description |
|---|---|
| Find problems by overview | Queries that results point to different aspects of database that might have problems. A human reviewer has to decide based on the results as to whether there are problems or not . |
| Category name | Category description |
|---|---|
| Boolean data | Queries of this category provide information about truth-values data that is kept in the database. |
| Data types | Queries of this category provide information about the data types and their usage. |