合 Mos脚本version_rpt3_25.sql用于排查高版本游标的原因
Tags： Oracle版本数高(High Version Count)version_rpt
👉 本文共约825个字，系统预计阅读时间或需4分钟。
目录
简介
SQL 版本数过高 – 原因判断脚本 (Doc ID 1985045.1)
High SQL Version Counts - Script to determine reason(s) (Doc ID 438755.1)
可以直接使用sys用户运行：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 | create or replace view SQL_SHARED_CURSOR as select * from sys.v$sql_shared_cursor; create or replace view h$pseudo_cursor as select Pseudo_cursor, sql_id,obj_id hex_obj_id ,obj# object_id, u.name owner, o.name object_name ,address,hash_value,SHARABLE_MEM,parse_calls,VERSION_COUNT,is_obsolete from (select distinct KGLNAOBJ Pseudo_cursor,kglobt03 sql_id ,KGLHDPAR address,KGLNAHSH hash_value ,KGLOBHS0+KGLOBHS1+KGLOBHS2+KGLOBHS3+KGLOBHS4+KGLOBHS5+KGLOBHS6 SHARABLE_MEM ,KGLOBT12 parse_calls ,KGLHDEXC executions ,KGLOBCCC VERSION_COUNT ,decode(kglobt33, 1, 'Y', 'N') is_obsolete ,substr(KGLNAOBJ ,instr(KGLNAOBJ,'_',1,3)+1 ,instr(KGLNAOBJ,'_',1,4)-instr(KGLNAOBJ,'_',1,3)-1) obj_id ,(case when replace(translate(substr(upper(KGLNAOBJ) ,instr(KGLNAOBJ,'_',1,3)+1 ,instr(KGLNAOBJ,'_',1,4) -instr(KGLNAOBJ,'_',1,3)-1) ,'0123456789ABCDEF','................') ,'.') is null then 'Y' else 'N' end) is_safe_to_compare from x$kglob) k , obj$ o, user$ u where obj#=decode(is_safe_to_compare,'Y',to_number(obj_id,'xxxxxxxxxx'),0) and o.owner#=u.user#; Create or replace view H$PARAMETER as select a.ksppinm NAME, a.ksppdesc DESCRIPTION, b.ksppstvl SESSION_VALUE, c.ksppstvl SYSTEM_VALUE from x$ksppi a, x$ksppcv b, x$ksppsv c where a.indx = b.indx and a.indx = c.indx; create or replace function debug_version_rpt return DBMS_DEBUG_VC2COLL PIPELINED is v_status number; v_info varchar2(32767); begin loop v_status := dbms_pipe.receive_message('version_rpt',0); if v_status = 0 then dbms_pipe.unpack_message(v_info); pipe row (v_info); else return; end if; end loop ; end; / create or replace function version_rpt(p_sql_id varchar2 default null,p_hash number default null,p_debug char default 'N') return DBMS_DEBUG_VC2COLL PIPELINED is type vc_arr is table of varchar2(32767) index by binary_integer; type num_arr is table of number index by binary_integer; v_version varchar2(100); v_instance varchar2(100); v_colname vc_arr; v_Ycnt num_arr; v_count number:=-1; v_no number; v_all_no number:=-1; v_query varchar2(4000); v_sql_where varchar2(4000):=''; v_sql_where2 varchar2(4000):=''; v_sql_id varchar2(15):=p_sql_id; v_addr varchar2(100); V_coladdr varchar2(100); v_hash number:=p_hash; v_mem number; v_parses number; v_execs number; v_value varchar2(100); theCursor number; columnValue char(1); status number; v_driver varchar2(1000); TYPE cursor_ref IS REF CURSOR; vc cursor_ref; v_bind_dumped boolean:=false; v_auth_dumped boolean:=false; v_phv num_arr; v_phvc num_arr; procedure debugme(p_info varchar2) is v_st number; begin if p_debug='Y' then dbms_pipe.pack_message(p_info); v_st := dbms_pipe.send_message('version_rpt',5); if v_st=1 then dbms_pipe.purge('version_rpt'); end if; end if; end; BEGIN if p_debug='Y' then status:=DBMS_PIPE.CREATE_PIPE ( pipename=>'version_rpt',maxpipesize=>1024*1024); if status<>0 then pipe row ('Cannot debug'); return; end if; end if; debugme('instance version'); select version,'Host: '||HOST_NAME||' Instance '||INSTANCE_NUMBER||' : '||INSTANCE_NAME into v_version , v_instance from v$instance; debugme('build v$sqlarea query for '||v_sql_id||' '||v_hash); /* This aggregate query is in the cases where 1) So many versions of the same SQL that many parents have been obsoleted. 2) there are more than 1 SQL with the same hash value or sql_id (very rare) */ v_query:='select '|| case when v_version like '9%' then '(NULL)' else '(sql_id)' end ||' sql_id,' || 'max(sql_text) query,' || 'max(hash_value) hash,' || 'max(rawtohex(ADDRESS)) addr,' || 'sum(SHARABLE_MEM) SHARABLE_MEM,' || 'sum(PARSE_CALLS) PARSE_CALLS,' || 'sum(EXECUTIONS) EXECUTIONS' || ' from v$sqlarea where' || case when v_sql_id is not null then ' sql_id=:v_sql_id' else ' hash_value=:v_hash' end || ' group by '|| (case when v_version like '9%' then 'NULL' else 'sql_id' end); debugme(v_query); if v_sql_id is not null then open vc for v_query using v_sql_id; else open vc for v_query using v_hash; end if; debugme('Successful open cursor'); PIPE ROW('Note:438755.1 Version Count Report Version 3.2.5 -- Today''s Date '||to_char(sysdate,'dd-mon-yy hh24:mi')) ; PIPE ROW('RDBMS Version :'||v_version||' '||v_instance); debugme('fetch '||v_sql_id||' '||v_hash); fetch vc into v_sql_id, v_query,v_hash,v_addr,v_mem,v_parses,v_execs; if vc%notfound then /* This execption could mean 2 things 1) The user gave a wrong SQLID 2) The SQLID belongs to a pseudo cursor. if 2) then the info will not be in v$sqlarea so will try h$pseudo_cursor. I do not query h$pseudo_cursor from the start to avoid as much as possible to access x$ views directly due to their mutex and latch restrictions and to take advantage of any optimizations done in v$sqlarea. */ debugme('not found - alternate'); v_query:= replace(v_query,'v$sqlarea','H$PSEUDO_CURSOR'); v_query:= replace(v_query,'sql_text','Pseudo_cursor||''(PseudoCursor of ''||owner||''.''||object_name||'')'''); debugme(v_query); close vc; if v_sql_id is not null then open vc for v_query using v_sql_id; else open vc for v_query using v_hash; end if; fetch vc into v_sql_id, v_query,v_hash,v_addr,v_mem,v_parses,v_execs; if vc%notfound then return; /* Sorry, really is not in the library cache. */ end if; end if; close vc; debugme('Header'); v_colname.delete; v_Ycnt.delete; v_count:=-1; v_no:=0; v_all_no:=-1; PIPE ROW('=================================================================='); PIPE ROW('Addr: '||v_addr||' Hash_Value: '||v_hash||' SQL_ID '||v_sql_id); PIPE ROW('Sharable_Mem: '||v_mem||' bytes Parses: '||v_parses||' Execs:'||v_execs); PIPE ROW('Stmt: '); for i in 0 .. trunc(length(v_query)/64)+1 loop debugme('Print query line '||i); PIPE ROW(i||' '||substr(v_query,1+i*64,64)); end loop; debugme('Fetch SQL_SHARED_CURSOR columns'); SELECT COLUMN_NAME,0 bulk collect into v_colname,v_Ycnt from cols where table_name='SQL_SHARED_CURSOR' and CHAR_LENGTH=1 order by column_id; v_query:=''; debugme('Build Select List'); for i in 1 .. v_colname.count loop v_query:= v_query ||','|| v_colname(i); end loop; debugme('Build Where'); if v_version like '9%' then v_sql_where:=' WHERE ADDRESS=HEXTORAW('''||V_ADDR||''')'; v_sql_where2:=' WHERE KGLHDPAR=HEXTORAW('''||V_ADDR||''')'; elsif v_sql_id is not null then v_sql_where:=' WHERE SQL_ID='''||v_sql_id||''''; v_sql_where2:=v_sql_where; else v_sql_where:=' WHERE ADDRESS=HEXTORAW('''||V_ADDR||''')'; v_sql_where2:=v_sql_where; end if; debugme('Build Query'); v_query:= 'SELECT '||substr(v_query,2) || ' FROM SQL_SHARED_CURSOR '; v_query:=v_query||v_sql_where2; debugme(substr(v_sql_where2,-80)); debugme('Open Query'); begin theCursor := dbms_sql.open_cursor; sys.dbms_sys_sql.parse_as_user(C=>theCursor,STATEMENT=> v_Query, LANGUAGE_FLAG=>dbms_sql.native ,USERID=>0); for i in 1 .. v_colname.count loop dbms_sql.define_column( theCursor, i, columnValue, 8000 ); end loop; status := dbms_sql.execute(theCursor); debugme('Initiate Fetch'); while (dbms_sql.fetch_rows(theCursor) >0) loop v_no:=0; v_count:=v_count+1; debugme('Fetch row '||v_count); for i in 1..v_colname.count loop dbms_sql.column_value(theCursor, i, columnValue); -- debugme('Decode row '||v_count||' column '||i); if columnValue='Y' then v_Ycnt(i):=v_Ycnt(i)+1; else v_no:=v_no+1; end if; end loop; if v_no=v_colname.count then v_all_no:=v_all_no+1; end if; end loop; dbms_sql.close_cursor(theCursor); end; debugme('Version summary'); PIPE ROW(''); PIPE ROW('Versions Summary'); PIPE ROW('----------------'); for i in 1 .. v_colname.count loop if v_Ycnt(i)>0 then PIPE ROW(v_colname(i)||' :'||v_Ycnt(i)); end if; end loop; If v_all_no>1 then PIPE ROW('Versions with ALL Columns as "N" :'||v_all_no); end if; PIPE ROW(' '); PIPE ROW('Total Versions:'||v_count); PIPE ROW(' '); PIPE ROW('~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ '); V_value:=NULL; v_query:='select max(SYSTEM_VALUE) into :v_value from h$parameter where name=''cursor_sharing'' '; execute immediate v_query into v_value; if v_value is not null then PIPE ROW('cursor_sharing = '||v_value); end if; V_NO:=NULL; v_query:='select max(SYSTEM_VALUE) into :v_no from h$parameter where name=''_cursor_obsolete_threshold'' '; execute immediate v_query into v_no; if v_no is not null then PIPE ROW('_cursor_obsolete_threshold = '||v_no||' (See Note:10187168.8)'); end if; PIPE ROW('~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ '); PIPE ROW(' '); v_phv.delete; v_phvc.delete; debugme('PHV'); v_query:='select plan_hash_value,count(*) from v$sql '||v_sql_where||' group by plan_hash_value'; execute immediate v_query bulk collect into v_phv,v_phvc; PIPE ROW('Plan Hash Value Summary'); PIPE ROW('-----------------------'); PIPE ROW('Plan Hash Value Count'); PIPE ROW('=============== ====='); for i in 1 .. v_phv.count loop PIPE ROW(to_char(v_phv(i),'99999999999999')||' '||to_char(v_phvc(i))); end loop; PIPE ROW(' '); for i in 1 .. v_colname.count loop debugme('Diag for '||v_colname(i)||' Ycnt:'||v_Ycnt(i)); if v_Ycnt(i)>0 then PIPE ROW('~~~~~~~~~~~~~~'||rpad('~',length(v_colname(i)),'~')); PIPE ROW('Details for '||v_colname(i)||' :'); PIPE ROW(''); if ( v_colname(i) like '%BIND%') or (v_version like '11.1%' and v_colname(i)='ROW_LEVEL_SEC_MISMATCH') then if v_bind_dumped=true then -- Dump only once PIPE ROW('Details shown already.'); else v_bind_dumped:=true; if v_version like '9%' then PIPE ROW('No details for '||v_version); else PIPE ROW('Consolidated details for BIND* columns:'); PIPE ROW('BIND_MISMATCH,USER_BIND_PEEK_MISMATCH,BIND_UACS_DIFF,BIND_LENGTH_UPGRADEABLE,etc and'); PIPE ROW('BIND_EQUIV_FAILURE (Mislabled as ROW_LEVEL_SEC_MISMATCH BY bug 6964441 in 11gR1)'); PIPE ROW(''); declare v_position num_arr; v_maxlen num_arr; v_minlen num_arr; v_dtype num_arr; v_prec num_arr; v_scale num_arr; v_n num_arr; v_bg char(3); v_bgflag char(1):='N'; begin v_query:='select position,min(max_length),max(max_length),datatype,precision,scale,count(*) n' ||' from v$sql_bind_capture where sql_id=:v_sql_id' ||' group by sql_id,position,datatype,precision,scale' ||' order by sql_id,position,datatype,precision,scale'; EXECUTE IMMEDIATE v_query bulk collect into v_position, v_minlen, v_maxlen , v_dtype ,v_prec ,v_scale , v_n using v_sql_id; PIPE ROW('from v$sql_bind_capture'); PIPE ROW('COUNT(*) POSITION MIN(MAX_LENGTH) MAX(MAX_LENGTH) DATATYPE BIND GRADUATION (PRECISION,SCALE)'); PIPE ROW('======== ======== =============== =============== ======== =============== ================='); for c in 1 .. v_position.count loop v_bg:=(case when v_maxlen(c)>v_minlen(c) then 'Yes' else 'No' end); v_bgflag:=(case when v_bg='Yes' and v_n(c)>99 then 'Y' end); PIPE ROW( to_char(v_n(c),'9999999')||' '||to_char(v_position(c),'9999999')||' '|| to_char(v_minlen(c),'99999999999999') ||' '|| to_char(v_maxlen(c),'99999999999999') ||' '|| to_char(v_dtype(c),'9999999') ||' '||v_bg ||' ('|| v_prec(c)||','||v_scale(c)||')' ); end loop; if ( v_bgflag='Y' ) then PIPE ROW ('The above table shows binds with 100+ versions in the same position with different MAX_LENGTHs.'); PIPE ROW ('See "Add event to improve cursor sharability on BIND_LENGTH_UPGRADEABLE" '); end if; if v_version not like '10%' and v_version not like '9%' then v_query:='select sum(decode(IS_OBSOLETE,''Y'', 1, 0)),sum(decode(IS_BIND_SENSITIVE ,''Y'',1, 0))' ||',sum(decode(IS_BIND_AWARE,''Y'',1,0)),sum(decode(IS_SHAREABLE,''Y'',1,0))' ||' from v$sql where sql_id = :v_sql_id'; EXECUTE IMMEDIATE v_query bulk collect into v_position, v_minlen, v_maxlen , v_dtype using v_sql_id; PIPE ROW(''); PIPE ROW('SUM(DECODE(column,Y, 1, 0) FROM V$SQL'); PIPE ROW('IS_OBSOLETE IS_BIND_SENSITIVE IS_BIND_AWARE IS_SHAREABLE'); PIPE ROW('=========== ================= ============= ============'); for c in 1 .. v_position.count loop PIPE ROW(to_char(v_position(c),'9999999999')||' '|| to_char(v_minlen(c),'9999999999999999') ||' '|| to_char(v_maxlen(c),'999999999999') ||' '|| to_char(v_dtype(c),'99999999999')); end loop; end if; end; end if; end if; elsif v_colname(i) ='OPTIMIZER_MODE_MISMATCH' then for c in (select OPTIMIZER_MODE,count(*) n from v$sql where hash_value=v_hash group by OPTIMIZER_MODE) loop PIPE ROW(c.n||' versions with '||c.OPTIMIZER_MODE); end loop; elsif v_colname(i) ='OPTIMIZER_MISMATCH' then if v_version like '9%' then PIPE ROW('No details available for '||v_version); else declare v_param vc_arr; v_value vc_arr; v_n num_arr; begin v_query:='select o.NAME,o.VALUE ,count(*) n ' ||'from V$SQL_OPTIMIZER_ENV o,sql_shared_cursor s ' ||'where ISDEFAULT=''NO'' ' ||' and OPTIMIZER_MISMATCH=''Y'' ' ||' and s.sql_id=:v_sql_id ' ||' and o.sql_id=s.sql_id ' ||' and o.CHILD_ADDRESS=s.CHILD_ADDRESS ' ||' group by o.NAME,o.VALUE '; EXECUTE IMMEDIATE v_query bulk collect into v_param,v_value,v_n using v_sql_id ; for c in 1 .. v_n.count loop PIPE ROW(v_n(c)||' versions with '||v_param(c)||' = '||v_value(c)); end loop; end; end if; elsif v_colname(i) ='AUTH_CHECK_MISMATCH' then declare v_pusr num_arr; v_pschid num_arr; v_pschname vc_arr; v_n num_arr; begin if v_version like '9%' then v_query:='select PARSING_USER_ID, PARSING_SCHEMA_ID, ''n/a'' ,count(*) n from v$sql ' ||v_sql_where ||' group by PARSING_USER_ID, PARSING_SCHEMA_ID,''n/a'''; else v_query:='select PARSING_USER_ID, PARSING_SCHEMA_ID, PARSING_SCHEMA_NAME ,count(*) n from v$sql ' ||v_sql_where ||' group by PARSING_USER_ID, PARSING_SCHEMA_ID, PARSING_SCHEMA_NAME'; end if; EXECUTE IMMEDIATE v_query bulk collect into v_pusr,v_pschid,v_pschname,v_n; PIPE ROW(' # of Ver PARSING_USER_ID PARSING_SCHEMA_ID PARSING_SCHEMA_NAME'); PIPE ROW('========== =============== ================= ==================='); for c in 1 .. v_n.count loop PIPE ROW(to_char(v_n(c),'999999999')|| TO_CHAR(v_pusr(c),'9999999999999999')|| to_char(v_pschid(c),'99999999999999999')||' '||v_pschname(c)); end loop; end; elsif v_colname(i) = 'TRANSLATION_MISMATCH' then declare v_objn num_arr; v_objow vc_arr; v_objnm vc_arr; begin v_query:='select distinct p.OBJECT#,p.OBJECT_OWNER,p.OBJECT_NAME' ||' from (select OBJECT_NAME ,count(distinct object#) n from v$sql_plan ' ||v_sql_where ||' and object_name is not null group by OBJECT_NAME ) d' ||' ,v$sql_plan p where d.object_name=p.object_name and d.n>1'; EXECUTE IMMEDIATE v_query bulk collect into v_objn,v_objow,v_objnm; If v_objn.count>0 then PIPE ROW('Summary of objects probably causing TRANSLATION_MISMATCH'); PIPE ROW(' '); PIPE ROW(' Object# Owner.Object_Name'); PIPE ROW('============ ================='); for c in 1 .. v_objn.count loop PIPE ROW(to_char(v_objn(c),'99999999999')||' '||v_objow(c)||'.'||v_objnm(c)); end loop; else PIPE ROW('No objects in the plans with same name and different owner were found.'); end if; end; else PIPE ROW('No details available'); end if; end if; end loop; debugme('cursortrace'); IF v_version not like '9%' then PIPE ROW('####'); PIPE ROW('To further debug Ask Oracle Support for the appropiate level LLL.'); if v_version in ('10.2.0.1.0','10.2.0.2.0','10.2.0.3.0') THEN PIPE ROW('and read note:457225.1 Cannot turn off Trace after setting CURSORTRACE EVENT'); end if; PIPE ROW('alter session set events '); PIPE ROW(' ''immediate trace name cursortrace address '||v_hash||', level LLL'';'); PIPE ROW('To turn it off do use address 1, level 2147483648'); end if; PIPE ROW('================================================================'); debugme('End of version_rpt'); return; exception when others then PIPE ROW('Error :'||sqlerrm); PIPE ROW('for Addr: '||v_addr||' Hash_Value: '||v_hash||' SQL_ID '||v_sql_id); for i in 0 .. trunc(length(v_query)/64) loop PIPE ROW(i||' '||substr(v_query,1+i*64,64)); end loop; return; end; / rem select b.* from v$sqlarea a ,table(version_rpt(a.sql_id,null,'Y')) b where loaded_versions >=100; rem select * from table(debug_version_rpt); |
注意(s):
对于已经包含了patch 10187168的数据库版本, _CURSOR_OBSOLETE_THRESHOLD的默认值是100. 因为这个值被认为太低,所以已经被增长到了1024 对于包含了patch 10187168的数据库版本比如11.2.0.3, 我们应该用一个比较小的值作为LOADED_VERSIONS (而不是大于100) 当然如果你或者你的应用程序需要,也可以把它增加到300或更高 参照
See: Document 10187168.8 Bug 10187168 - Enhancement to obsolete parent cursors if VERSION_COUNT exceeds a threshold
注意：在11g数据库及以上版本，这个脚本只会对因为 BIND* 原因导致的废弃的游标做统计
本人提供Oracle(OCP、OCM)、MySQL(OCP)、PostgreSQL(PGCA、PGCE、PGCM)等数据库的培训和考证业务，私聊QQ646634621或微信dbaup66，谢谢！
