| 1 schema.inc | abstract public DatabaseSchema::addUniqueKey($table, $name, $fields) |
Add a unique key.
Parameters
string $table: The table to be altered.
string $name: The name of the key.
string[] $fields: An array of field names.
Return value
void:
Throws
DatabaseSchemaObjectDoesNotExistException If the specified table doesn't exist.
DatabaseSchemaObjectExistsException If the specified table already has a key by that name.
File
- core/
includes/ database/ schema.inc, line 556 - Generic Database schema code.
Class
- DatabaseSchema
- Base class for database schema definitions.
Code
abstract public function addUniqueKey($table, $name, $fields);