· Create a table with key constraint with "using index" . There are no indexes defined for this table before the key constraint is created. As such, when creating the constraint, an unique index with the same name with the constraint name is created.
Hot Crushers Brief Introduction
We are a professional mining machinery manufacturer, the main equipment including: jaw crusher, cone crusher and other sandstone equipment;Ball mill, flotation machine, concentrator and other beneficiation equipment; Powder Grinding Plant, rotary dryer, briquette machine, mining, metallurgy and other related equipment.If you are interested in our products or want to visit the nearby production site, you can click the button to consult us.
You can also send a message to us by this email [email protected], we will reply to you within 24 hours.Now tell us your need,there will be more favorable prices!