SQL Server?
「sys」の情報を取得するクエリ
SELECT * FROM sys.xml_schema_collections
select name from sysdatabases
select * from sys.databases
select * from sys.tables
use XXDatabase SELECT CONSTRAINT_NAME = REF_CONST.CONSTRAINT_NAME, TABLE_CATALOG = FK.TABLE_CATALOG, TABLE_SCHEMA = FK.TABLE_SCHEMA, TABLE_NAME = FK.TABLE_NAME, COLUMN_NAME = FK_COLS.COLUMN_NAME, REFERENCED_TABLE_CATALOG = PK.TABLE_CATALOG, REFERENCED_TABLE_SCHEMA = PK.TABLE_SCHEMA, REFERENCED_TABLE_NAME = PK.TABLE_NAME, REFERENCED_COLUMN_NAME = PK_COLS.COLUMN_NAME FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS REF_CONST INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS FK ON REF_CONST.CONSTRAINT_CATALOG = FK.CONSTRAINT_CATALOG AND REF_CONST.CONSTRAINT_SCHEMA = FK.CONSTRAINT_SCHEMA AND REF_CONST.CONSTRAINT_NAME = FK.CONSTRAINT_NAME AND FK.CONSTRAINT_TYPE = 'FOREIGN KEY' INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS PK ON REF_CONST.UNIQUE_CONSTRAINT_CATALOG = PK.CONSTRAINT_CATALOG AND REF_CONST.UNIQUE_CONSTRAINT_SCHEMA = PK.CONSTRAINT_SCHEMA AND REF_CONST.UNIQUE_CONSTRAINT_NAME = PK.CONSTRAINT_NAME AND PK.CONSTRAINT_TYPE = 'PRIMARY KEY' INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE FK_COLS ON REF_CONST.CONSTRAINT_NAME = FK_COLS.CONSTRAINT_NAME INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE PK_COLS ON PK.CONSTRAINT_NAME = PK_COLS.CONSTRAINT_NAME