您可以通过查询数据字典视图(视情况而定) *_TABLES, *_PART_TABLES, *_ALL_TABLES, 或*_OBJECT_TABLES的status列,列出此类删除操作标记为UNUSABLE的表。 对于索引组织表,删除索引组织表上定义的任何映射表。 对于域索引,调用适当的删除例程。有关这些例程的详细信息,请参阅《Oracle Database Data Cartridge Develop...
このような削除操作でUNUSABLEのマークが付けられた表のリストは、該当する*_TABLES、*_PART_TABLES、*_ALL_TABLESまたは*_OBJECT_TABLESデータ・ディクショナリ・ビューのstatus列を問い合せて表示できます。 関連項目: パーティション表の削除の詳細は、『Oracle Database VLDBおよびパーティ...
How to drop all the tables in the schema spool drop_table_schema.sql select 'drop table '||table_name||';' from user_tables spool off @drop_table_schema.sql Drop table if exists in Oracle/oracle drop table if exists We sometimes want to check the table’s existence to avoid throwing ...
Oracle/ Oracle Database/ Release 12.2 SQL Language Reference Purpose Use theDROPCLUSTERclause to remove a cluster from the database. Note: When you drop a cluster, any tables in the recycle bin that were once part of that cluster are purged from the recycle bin and can no longer be recove...
tablespace-nameTRANSFORMALLgroup-nameFORtype-nameTHRESHOLDthreshold-nameTRIGGERtrigger-nameTRUSTED CONTEXTcontext-nameTYPEtype-nameRESTRICTTYPE MAPPINGtype-mapping-nameUSAGE LISTusage-list-nameUSER MAPPING FORauthorization-nameUSERSERVERserver-nameVARIABLEvariable-nameRESTRICTVIEWview-nameVIEW HIERARCHYroot-view-name...
oracle drop/truncate table 恢复 drop table 并且回收站已经被情况了,如何恢复? 前提:数据库开规档,并且删除之前的归档没有被删掉。 思路:rman备份、创建pfile、 创建一个辅助实例恢复之后,再导入到原来实例; 1. 如果开了闪回,可闪回 2. 利用备份加archivelog 进行不完全恢复(该方法同样适用于truncate的...
3) Using Oracle DROP TABLESPACE to remove a tablespace whose tables are referenced by referential constraints First, create two tablespaces namedtbs3andtbs4: CREATETABLESPACEtbs3DATAFILE'tbs3_data.dbf'SIZE5m;CREATETABLESPACEtbs4DATAFILE'tbs4_data.dbf'SIZE5m;Code language:SQL (Structured Query Language...
DROP DATABASEdrops all tables in the database and deletes the database. If you do aDROP DATABASEon a symbolic linked database, both the link and the original database are deleted.Be very careful with this command! DROP DATABASEreturns the number of files that were removed from the data...
Oracle provides no direct way to drop multiple tables at once. However, you can use the following PL/SQL block to do it: BEGINFORrecIN(SELECTtable_nameFROMall_tablesWHEREtable_nameLIKE'TEST_%')LOOPEXECUTEimmediate'DROP TABLE '||rec.table_name ||' CASCADE CONSTRAINTS';ENDLOOP;END; /Code ...
Oracle Database has two types of temporary table: global (GTT) and private (PTT).Global Temporary Tables (GTT)The syntax to create a global temporary table is:Copy code snippet Copied to Clipboard Error: Could not Copy Copied to Clipboard Error: Could not Copy create global temporary tab...