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# asserta(+Clause)

Add specified clause for a dynamic procedure to the database before any existing clauses.

Clause
  Clause to be added to the database

## Description

Adds the specified clause for a dynamic procedure to the database. This is similar to the action of assert/1 except that the clause is added BEFORE any existing clauses for the procedure.

Apart from that, its behaviour is identical to assert/1.

### Modes and Determinism

- asserta(+) is det

### Modules

This predicate is sensitive to its module context (tool predicate, see @/2).

## See Also

dynamic / 1, assert / 1, retract / 1, compile_term / 1