Programmer Group

The process is as follows: Ensure that the database is in archivelog mode. Determine where to copy the backup files. Identify which files need to be backed up. Note the maximum sequence number of the online redo logs. Alter the database/tablespace into backup mode. Copy the data files with an OS utility to the location determin ...

Recently, colleagues used ArcMap to create layers in the customer's site, so simply record the process. The software version environment is: ArcGIS Desktop 10.2.1 Oracle 11.2.0.4 For reasons of confidentiality, error screenshots cannot be provided, only error codes can be provided. The error code is ora-29881 [oracle@bigdataserver ~]$ ...

A friend asked such a question: Fri May 25 20:46:06 2007　　//Automatic backup control file Starting control autobackup  Control autobackup written to DISK device  handle '/ora_rman_backup/crtl_backup/c-4205638757-20070525-00'  Fri May 25 20:46:11 2007　　 //Log switching occurs Thread 1 advanced to log sequence 535  Curre ...

What is the cursor? A cursor literally means a moving cursor. Description in database language: cursor is a positional entity mapped on a row of data in the result set. With cursor users, they can access any row of data in the result set. After placing the cursor on a row, they can operate on the row data, such as extracting the data of the ...

1,Function grammar 1.1,Syntax overview 1.2,Window detail 1.2.1,ROWS window 1.2.2,RANGE window 2,Function usage 2.1,General Statistical Class Function 2.2,Data Sorting Class Function 2.3,Data Distribution Class Function 2.4,Statistical analysis class function 3,Supplementary case 4,summary Analytical functions are used to cal ...

What is private service? Private servers, or private servers, are an internal Maven repository through which a company's internal Maven project needs to download dependent packages and plug-ins. Nexus is a common private Maven server, which is usually used internally. Common Functions and Introduction Designate your Maven project to priv ...

Problem Description: This is a diagnostic case to help a company. Application is a background news release system. Symptoms are that access to news pages via links is extremely slow It usually takes ten seconds to return. This performance is intolerable to users. Operating System: SunOS 5.8 Database Version: 8.1.7   1. Check and track dat ...

1,GROUP BY Standard Grouping 1.1,Overview of GROUP BY 1.2,The difference between WHERE and HAVING? 2,GROUP BY Extended Grouping 2.1,ROLLUP grouping 2.2,CUBE grouping 2.3,GROUPING SETS grouping 2.4,Complex grouping (combination column grouping, duplicate column grouping, connection grouping) 3,GROUP BY Extension Function 3.1,GROUPI ...

Sometimes it's a waste of time and effort to set up a secure password that complies with the complexity of the password. More importantly, it's often a tangle when setting the password. Finally, one day I couldn't help it, so I learned and sorted out how to use Linux to make commands randomly to generate commands that are safe and compliant wit ...

Preface Oracle database (1) For Oracle partitioned tables, there are two partitions: local index and global index. (2) Table partitioning and index partitioning are two different concepts (3) Local index, also known as local index, has the same partition form as table partition, the same dependent columns and the same storage attributes. ...