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[20190329]探究sql语句相关mutexes补充2.txt(二)
2019-09-17 19:03:25 】 浏览:227
Tags:20190329 探究 sql 语句 相关 mutexes 补充 2.txt
ELECT DEPTNO FROM DEPT WHERE DEPTNO=10
1692266099    1997852 4.6240E+10 kksfbc [KKSCHLFSP2]            Cursor Pin           000000007BD3F260 a31kd5tkdvvmm          SELECT DEPTNO FROM DEPT WHERE DEPTNO=10
1692266099    1345020 1.7428E+10 kksfbc [KKSCHLFSP2]            Cursor Pin           000000007C08D440 a31kd5tkdvvmm          SELECT DEPTNO FROM DEPT WHERE DEPTNO=10
1692266099    1273888 1.9013E+10 kksLockDelete [KKSCHLPIN6]     Cursor Pin           000000007C08D440 a31kd5tkdvvmm          SELECT DEPTNO FROM DEPT WHERE DEPTNO=10
6 rows selected.

SYS@book> @ fcha 000000007BD3EC98
LOC KSMCHPTR           KSMCHIDX   KSMCHDUR KSMCHCOM           KSMCHSIZ KSMCHCLS   KSMCHTYP KSMCHPAR
--- ---------------- ---------- ---------- ---------------- ---------- -------- ---------- ----------------
SGA 000000007BD3E5D0          1          1 KGLH0^64ddee73         4096 recr           4095 000000007CA31368

SYS@book> @ fcha 000000007BD3F260
LOC KSMCHPTR           KSMCHIDX   KSMCHDUR KSMCHCOM           KSMCHSIZ KSMCHCLS   KSMCHTYP KSMCHPAR
--- ---------------- ---------- ---------- ---------------- ---------- -------- ---------- ----------------
SGA 000000007BD3E5D0          1          1 KGLH0^64ddee73         4096 recr           4095 000000007CA31368

SYS@book> @ fcha 000000007C08D440
LOC KSMCHPTR           KSMCHIDX   KSMCHDUR KSMCHCOM           KSMCHSIZ KSMCHCLS   KSMCHTYP KSMCHPAR
--- ---------------- ---------- ---------- ---------------- ---------- -------- ---------- ----------------
SGA 000000007C08D168          1          1 KGLH0^64ddee73         4096 freeabl           0 000000007CA31368

--//3个子光标的KSMCHPAR=000000007CA31368.不过位置不一样,1个在KSMCHCLS=recr.另外1个在KSMCHCLS=freeabl.

3.对比共享池的情况看看.
select a.* from x$ksmsp a where a.ksmchpar=hextoraw('000000007CA31368')
ADDR  
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