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 DOMAININDEX 

The DROP DEFAULT and SET DEFAULT Clauses

The optional DROP DEFAULT clause deletes the current default value for the column.

  • If the column is based on a domain with a default value, the default value will revert to the domain default

  • An error will be raised if an attempt is made to delete the default value of a column which has no default value or whose default value is domain-based

The optional SET DEFAULT clause sets a default value for the column.If the column already has a default value, it will be replaced with the new one.The default value applied to a column always overrides one inherited from a domain.

DROP TABLE

Drops a table

Available in

DSQL, ESQL

Syntax
DROP TABLE tablename
Table 1. DROP TABLE Statement Parameter
Parameter Description

tablename

Name (identifier) of the table

The DROP TABLE statement drops (deletes) an existing table.If the table has dependencies, the DROP TABLE statement will fail with an error.

When a table is dropped, all its triggers and indexes will be deleted as well.