public Schema::findTables($table_expression) Finds

public Schema::createTable($name, $table) Create

abstract public Schema::dropUniqueKey($table, $name) Drop

abstract public Schema::renameTable($table, $new_name)

A unique identifier for this query object. File core/lib/Drupal/Core/Database/Schema.php, line 39

abstract public Schema::addField($table, $field, $spec, $keys_new = array())

abstract public Schema::getFieldTypeMap() Returns

public Schema::__construct($connection) File

abstract public Schema::fieldSetDefault($table, $field, $default)

public Schema::fieldExists($table, $column) Check