--统计某个用户下面的对象个数
--包括表，视图，同义词，函数，存储过程，包，触发器，索引,约束，序列。
SELECT
(SELECT COUNT(*) FROM USER_TABLES) AS TABLES,
(SELECT COUNT(*) FROM USER_VIEWS)AS VIEWS,
(SELECT COUNT(*) FROM USER_SYNONYMS)AS SYNONYMS,
(SELECT COUNT(*) FROM USER_OBJECTS WHERE OBJECT_TYPE='FUNCTION') AS FUNCTIONS,
(SELECT COUNT(*) FROM USER_OBJECTS WHERE OBJECT_TYPE='PROCEDURE') AS PROCEDURES,
(SELECT COUNT(*) FROM USER_OBJECTS WHERE OBJECT_TYPE='PACKAGE') AS PACKAGES,
(SELECT COUNT(*) FROM USER_OBJECTS WHERE OBJECT_TYPE='TRIGGER') AS TRIGGERS,
(SELECT COUNT(*) FROM USER_INDEXES) AS INDEXES,
(SELECT COUNT(*) FROM USER_CONSTRAINTS) AS CONSTRAINTS,
(SELECT COUNT(*) FROM USER_SEQUENCES) AS SEQUENCES
FROM DUAL