oracle常用sql

---
--获取表结构，ID、列名、数据类型、是否为NULL、列的默认值
select COLUMN_NAME , DATA_TYPE,NULLABLE,COLUMN_ID,DATA_DEFAULT from all_tab_columns  where OWNER = 'HUFENGTEST' AND Table_Name='TYC_10'; 

--查看主键名
select col.column_name from all_constraints con,  all_cons_columns col where con.constraint_name = col.constraint_name and con.constraint_type='P'  and col.OWNER = 'HUFENGTEST' and col.table_name = 'TYC_10'

--获取触发器名
select trigger_name from all_triggers where owner = 'station_0' and table_name='tyc_63';  

--获取触发器的内容
select text from all_source where OWNER = 'station_0' and type='TRIGGER' AND name='tyc_63_trigger_name';

--触发器内容：
TRIGGER "station_0"."tyc_63_trigger_name" BEFORE INSERT ON "station_0"."tyc_63" FOR EACH ROW
BEGIN
SELECT "station_0"."tyc_63_sequence_name".nextval INTO :new."id" FROM DUAL;
END;

--删除表：
DROP table HUFENGTEST.TYC_10

--查看所有表名
SELECT * from all_tables WHERE OWNER = 'sta

来源：CSDN

作者：shiduo0211

链接：https://blog.csdn.net/shiduo0211/article/details/103461892