bedbmsguru

SELECT a.session_id,
a.wait_type,
a.wait_duration_ms,
a.blocking_session_id,
a.resource_description,
CASE
WHEN CAST(RIGHT(a.resource_description, LEN(a.resource_description) - CHARINDEX(':', a.resource_description, 3)) AS INT)
- 1 % 8088 = 0 THEN 'Is PFS Page'
WHEN CAST(RIGHT(a.resource_description,
LEN(a.resource_description)
- CHARINDEX(':', a.resource_description, 3)) AS INT)
- 2 % 511232 = 0 THEN 'Is GAM Page'
WHEN CAST(RIGHT(a.resource_description,
LEN(a.resource_description)
- CHARINDEX(':', a.resource_description, 3)) AS INT)
- 3 % 511232 = 0 THEN 'Is SGAM Page'
ELSE 'Is Not PFS, GAM, or SGAM page'
END resourcetype,
c.text AS SQLText
FROM sys.dm_os_waiting_tasks a
INNER JOIN sys.sysprocesses b
ON
a.session_id = b.spid
OUTER APPLY sys.dm_exec_sql_text(b.sql_handle) c
WHERE a.wait_type LIKE 'PAGE%LATCH_%'
AND a.resource_description LIKE '2:%';

https://sqlmonitormetrics.red-gate.com/tempdb-allocation-contention/

1. DBA 로그인

2. 링크 생성 권한 부여
grant create database link to 아이디;

3. 오라클 서버 TNS 등록
cd %ORACLE_HOME/admin/
cp tnsnames.ora tnsnames.ora.20181217
vi tnsnames.ora

4. 아이디 로그인

5. 링크 생성
CREATE DATABASE LINK 디비링크이름
connect to 타겟아이디 identified by “암호”
using ''tns등록이름''

6. 테스트
Select * from dual@디비링크이름;

7. 권한회수
revoke create database link from 아이디;