Für MySQL:
1) Tabellen-/Feldmetadaten abrufen
SELECT table_schema, table_name, column_name, ordinal_position, data_type,
numeric_precision, column_type, column_default, is_nullable, column_comment
FROM information_schema.columns
WHERE (table_schema='schema_name' and table_name = 'table_name')
order by ordinal_position;
ODER
show fields from 'table_name'
2) Foregn Keys-Referenztabelle abrufen
SELECT `REFERENCED_TABLE_NAME`
FROM `information_schema`.`KEY_COLUMN_USAGE`
WHERE
`TABLE_NAME` = 'table_name' AND
`COLUMN_NAME` = 'Column_Name'
3) Indizes (primär und fremd) für eine Tabelle abrufen
show keys from `table_name`
5) Alle Indizes und referenzierte Tabelle abrufen
SELECT *
FROM `KEY_COLUMN_USAGE`
WHERE
`TABLE_NAME` = 'table_name' AND
`TABLE_SCHEMA` = 'schema_name'
ODER
SELECT *
FROM `REFERENTIAL_CONSTRAINTS`
WHERE
`TABLE_NAME` = 'table_name' AND
`CONSTRAINT_SCHEMA` = 'schema_name'
6) GESPEICHERTE PROZEDUREN abrufen
SELECT *
FROM `ROUTINES`
WHERE
`ROUTINE_SCHEMA` = 'schema_name'
7) TRIGGER erhalten
SELECT *
FROM `TRIGGERS`
WHERE
`TRIGGER_SCHEMA` = 'schema_name'
8) EREIGNISSE abrufen
SELECT *
FROM `EVENTS`
WHERE
`EVENT_SCHEMA` = 'schema_name'
9) Aufrufe erhalten
SELECT *
FROM `VIEWS`
WHERE
`TABLE_NAME` = 'table_name' AND
`TABLE_SCHEMA` = 'schema_name'
