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Oracle Core Technology notes (this book is not carefully read, so you need to read it later ~~)Oracle Core Technology jump to: navigation, search DirectoryStart 12redo and undo3. Transactions and consistency4. locks and latches5 cache and copy6. Write and restore7. Analysis and Optimization8RAC and 'defect'9 appendix A dump and debugging At the begi

"Book Review: Oracle Query Optimization Rewrite" chapter fourth Blog Document structure diagram 650) this.width=650; "title=" wpse60b.tmp "border=" 0 "alt=" wpse60b.tmp "src=" http://s3.51cto.com/wyfs02/M00/6D/0B/ Wkiom1varbyhcepqaabjdaqoiyu258.jpg "" 291 "height=" 192 "/>I. 1 guideTechnical enthusiasts, after reading this article, you can master the following skills, you can also learn some other knowledge

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Oracle tablespace query and maintenance command Book II (undo tablespace)-- Undo tablespace Summary-- View All tablespace namesSelect name from v $ tablespace;-- Create a new UNDO tablespace and set automatic expansion parameters;Create undo tablespace undotbs2 datafile 'd: \ ORACLE \ PRODUCT \ 10.1.0 \ ORADATA \ ORCL \ UNDOTBS02.DBF 'size 10 m reuse autoextend o

One, the Oracle 11g database download, installation:Download:Then, based on this hyperlink build your own user, database.Http://wenku.baidu.com/view/caa21c1a650e52ea551898e2.htmlSecond, Navicat Premium connect Oracle1. Review the Tnsnames.ora file in the installation directory (F:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN).2, the connection, the first configuration option under the Oci file, download:Associated with the time,:OCI directo

. The WHERE and order statements of the LEFT join can be written after the on statement9, the internal connection is equivalent to the direct where two table fields are equal, only two tables matching data appearsFully connected two tables all records appear, mismatched items are displayed as nullThe left and right connections can be written in the where association, just like the normal two tables, but with the (+) in front of the table condition:Select a.code_id,b.* from AD_HP A, Bureau bwhere