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数据库信息查询语句.docx

发布:2018-08-22约1.99万字共26页下载文档
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数据库各个表空间增长情况的检查:? SQL SELECT A.TABLESPACE_NAME,(?1?-(A.TOTAL)/B.TOTAL)*?100?USED_PERCENT FROM (SELECT TABLESPACE_NAME,SUM (BYTES) TOTAL FROM DBA_FREE_SPACE GROUP BY TABLESPACE_NAME) A,(SELECT TABLESPACE_NAME,SUM (BYTES) TOTAL FROM DBA_DATA_FILES GROUP BY TABLESPACE_NAME) B WHERE A.TABLESPACE_NAME=B.TABLESPACE_NAME; SQL SELECT UPPER(F.TABLESPACE_NAME)??表空间名?,? D.TOT_GROOTTE_MB??表空间大小?(M),? ???????D.TOT_GROOTTE_MB - F.TOTAL_BYTES??已使用空间?(M)?, TO_CHAR(ROUND((D.TOT_GROOTTE_MB - F.TOTAL_BYTES) / D.TOT_GROOTTE_MB *?100?,?2?),?990.99?) ?使用比?,F.TOTAL_BYTES?空闲空间?(M)?,? ???????F.MAX_BYTES ?最大块?(M)? FROM (SELECT TABLESPACE_NAME,? ROUND(SUM (BYTES) / (?1024?*?1024?),?2?) TOTAL_BYTES,? ROUND(MAX (BYTES) / (?1024?*?1024?),?2?) MAX_BYTES? FROM SYS .DBA_FREE_SPACE GROUP BY TABLESPACE_NAME) F,? ???????(SELECT DD.TABLESPACE_NAME,ROUND(SUM (DD.BYTES) / (?1024?*?1024?),?2?) TOT_GROOTTE_MB FROM SYS .DBA_DATA_FILES DD? GROUP BY DD.TABLESPACE_NAME) D WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME? ORDER BY?4?DESC ; 查看各个表空间占用磁盘情况?:? SQL COL TABLESPACE_NAME FORMAT A20;? SQL SELECT B.FILE_ID FILE_ID,? B.TABLESPACE_NAME TABLESPACE_NAME,? B.BYTES BYTES,? (B.BYTES-SUM (NVL(A.BYTES,?0?))) USED,? SUM (NVL(A.BYTES,?0?)) FREE,? SUM (NVL(A.BYTES,?0?))/(B.BYTES)*?100?PERCENT? ?????FROM DBA_FREE_SPACE A,DBA_DATA_FILES B? ?????WHERE A.FILE_ID=B.FILE_ID? ?????GROUP BY B.TABLESPACE_NAME,B.FILE_ID,B.BYTES? ?????ORDER BY B.FILE_ID;? 数据库对象下一扩展与表空间的?free?扩展值的检查:? SQL SELECT A.TABLE_NAME, A.NEXT_EXTENT, A.TABLESPACE_NAME FROM ALL_TABLES A,(SELECT TABLESPACE_NAME, MAX (BYTES) AS BIG_CHUNK FROM DBA_FREE_SPACE GROUP BY TABLESPACE_NAME ) F WHERE F.TABLESPACE_NAME = A.TABLESPACE_NAME AND A.NEXT_EXTENT F.BIG_CHUNK UNION SELECT A.INDEX_NAME, A.NEXT_EXTENT, A.TABLESPACE_NAME FROM ALL_INDEXES A,(SELECT TABLESPACE_NAME, MAX (BYTES) AS BIG_CHUNK FROM DBA_FREE_SPACE GROUP BY TABLESPACE_NAME ) F WHERE F.TABLESPACE_NAME = A.TABLESPACE_NAME AND A.NEXT_EXTENT F.BIG_CHUNK; Disk Read?最高的?SQL?语句的获取:? SQL SELECT SQL_TEXT FRO
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