今天在用impdp导入时，Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX卡在建索引的过程一直不动，也不报错，重试了好几遍还是这样。后来恍然大悟，是不是DB出什么问题了，查看alert日志，发现这个错误：statement in resumable session ‘SYSTEM.SYS_IMPORT_SCHEMA_03.1‘ was timed out statement in resumable session ‘SYSTEM.SYS_IMPORT_SCHEMA_03.1‘ was suspended due to ORA-01659: unable to allocate MINEX...
Description当一个不是 MY_TABLE 这个表的 Owner - NOT_OWNER_USER 试图 grant MY_TABLE 的权限时，报错：Error report:
SQL Error: ORA-01720: grant option does not exist for ‘OWNER_SCHEMA".MY_TABLE‘
01720. 00000 - "grant option does not exist for ‘%s.%s‘"
*Cause: A grant was being performed on a view and the grant option wasnot present for an underlying object.
*Action: Obtain the grant option...
下午从生产库导出了一份表结构，用来测试一些问题,由于生产库连接着其他用户下的表所以通过视图在本地模拟一下,于是创建视图:create or replace view csews as select * from order_list;但是出现ORA-00955: name is already used by an existing object的错误，上网查了下说是数据库中有了同名对象，于是查询select * from all_objects where object_name=‘csews‘;但是没有任何记录,很是抓狂，找了好久也没有找到解决办法，最后...
GRANT SELECT ON "OWNER_SCHEMA"."MY_TABLE" TO "NOT_OWNER_USER" WITH GRANT OPTION;ReferencesOracle Database - ORA-01720 - grant option does not exist for ‘AnObject‘
Grant privilges error to the schema Oracle Database - ORA-01720 - grant option does not exist for AnObject标签：本文系统来源：http://www.cnblogs.com/yuxiaoqi/p/4788193.html
object_id和data_object_id 都是对象的唯一标识。
object_id是对象的逻辑标识
data_object_id是对象的物理标识
对于没有物理存储的对象，data_object_id就是空。例如：（procedure,function,package,data type,db link,mv定义,view定义,临时表,分区表定义等等）
当表刚创建的时候它的object_id和data_object_id都是相等的，但是如果表经过move或truncate后那么data_object_id将会有变化。ORACLE object_id和data_object_id标签：本...
包声明
create package omgmig.test_package
as
procedure show1;
end omgmig.test_package;--包体
create package body omgmig.test_package
as
procedure show1
is
begin
for i in 1..9 loop
dbms_output.put_line(‘i的值为：‘||i);
end loop;
end;
end omgmig.test_package;beginomgmig.test_package.show1;
end;
然后在包名上右击查看，pl/sql下提示错误原因：可是我在定义的时候明明是加了omgmig前缀的，然后drop这个pac...
--创建同义词create public synonym employees for hr.employees; --公共同义词需要 create public synonym 权限表的所有用户授予公共权限 grant select on employees to public;create synonym t1_s for t1; --私有同义词如果想在不同的环境中通过不同的别名引用同一个表时，要创建私有同义词。 编译同义词 alter synonym t1_s compile; 管理同义词select table_name, synonym_name from dba_synonymswhere owner=‘IKKI‘; ...
字符数据类型Character data types store character (alphanumeric) data in strings. 字符数据类型存储在字符串中的字符 （字母或数字） 数据。
The most commonly used character data type is VARCHAR2, which is the most efficient option for storing character data.最常用的字符数据类型是 VARCHAR2，它是用于存储字符数据的最有效的选项。
The byte values correspond to the character encoding scheme, generally ca...
Oracle数据库如何保存表数据？Oracle Database uses a data segment in a tablespace to hold table data.
Oracle 数据库使用表空间中的数据段保存表数据。
As explained in "User Segments", a segment contains extents made up of data blocks.
如"用户段"所述，段包含由数据块组成的扩展盘区。
The data segment for a table (or cluster data segment, when dealing with a table cluster) is located in either the defau...
表压缩
The database can use table compression to reduce the amount of storage required for the table.
数据库可以使用表压缩来消除数据块中的重复值。
Compression saves disk space, reduces memory use in the database buffer cache, and in some cases speeds query execution. Table compression is transparent to database applications.
对于数据高度冗余的表，压缩可以节省磁盘空间，减少数据库高速缓存中的内存使...
Oracle Schema Objects——Tables——Oracle Data Types
Oracle伪列
在Oracle数据库之中为了实现完整的关系数据库的功能，专门为用户提供了许多的伪列.“NEXTVAL”和“CURRVAL”就是两个默认提供的操作伪列Oracle Schema Objects——Sequences（伪列：nextval，currval）
SYSDATE与SYSTIMESTAMP也属于伪列SQL Fundamentals || Single-Row Functions || 日期函数date functions
查询使用的DUAL称为伪表这些...
DECLARE
TYPE cst_table_list IS TABLE OF VARCHAR2(40); TYPE cst_list IS TABLE OF VARCHAR2(40);
TYPE name_list IS TABLE OF VARCHAR2(40); TYPE type_list IS TABLE OF VARCHAR2(20);
cst_tab_name cst_table_list:=cst_table_list(); cst_name cst_list:=cst_list();
Tab_name name_list:=name_list(); Tab_type type_list:=type_list();
sql_str VARCHAR2(500);
v_err_code NUMBER; v_err_msg VARCHAR2(200);
BEGIN -- ...
查询 对象Object
SELECT *
FROM ALL_OBJECTS
WHERE OWNER = ‘SCOTT‘;Oracle ALL_OBJECTS标签：ble com href style bsp ssi png ref acl 本文系统来源：https://www.cnblogs.com/seabird1979/p/8214160.html
SELECT * FROM V$ACCESS WHERE OBJECT=‘CMSVOUCHER‘;
select * from dba_ddl_locks where name=‘CMSVOUCHER‘;
根据SID号查出会话信息：
select sid,serial# from v$session where sid in(‘78‘,‘209‘);
kill掉：
alter system kill session ‘78,4883‘;
alter system kill session ‘209,57021‘;重新编译了包和包体--编译成功，包debug调试正常。问题到此解决。oracle plsql 上对package 包执行重新编译时，超时无响应：(...
alter system set memory_max_target=4G scope=spfile;System altered.SQL> alter system set memory_target=5G scope=spfile;System altered. [oracle]ORA-04031: unable to allocate bytes of shared memory ("shared pool","unknown object","KKSSP^405","kglseshtTable")标签：问题 lte ora oracle 数据库 share acl cat 增加 本文系统来源：https://www.cnblogs.com/tingxin/p/12715595.html
