All classes that implement QueryPlaceholderInterface

class \DatabaseSchema implements QueryPlaceholderInterface
class \DatabaseSchema_mysql
class \DatabaseSchema_pgsql
class \DatabaseSchema_sqlite
class \DeleteQuery implements QueryConditionInterface
class \DeleteQuery_sqlite
class \InsertQuery
class \InsertQuery_mysql
class \InsertQuery_pgsql
class \InsertQuery_sqlite
class \MergeQuery implements QueryConditionInterface
class \PagerDefault
class \Query implements QueryPlaceholderInterface
class \SearchQuery
class \SelectQuery implements SelectQueryInterface
class \SelectQueryExtender implements SelectQueryInterface
class \SelectQuery_pgsql
class \SelectQuery_sqlite
class \TableSort
class \TruncateQuery
class \TruncateQuery_mysql
class \TruncateQuery_sqlite
class \UpdateQuery implements QueryConditionInterface
class \UpdateQuery_pgsql
class \UpdateQuery_sqlite