The automatic backup script for Oracle databases in Windows

The automatic backup script for Oracle databases in Windows @ Echo off echo ============================================ ================= echo in Windows environment, the Oracle database's automatic backup script echo 1. use the current date to

Find the corresponding SQL statement using the PID in the operating system, and find the SQL statement using the pid.

Find the corresponding SQL statement using the PID in the operating system, and find the SQL statement using the pid.In linux, we generally use the TOP command to view the processes with the largest performance consumption. If oracle is used, we

Summary of common Redis commands and common redis commands

Summary of common Redis commands and common redis commandsService command:• BGREWRITEAOF asynchronously rewrite the append object• BGSAVE asynchronously saves the dataset to the disk• Client kill ip: port closes CLIENT Connection• Client list to

An SQL Server query statement increases tempdb by 55 GB and tempdbby 55 GB.

An SQL Server query statement increases tempdb by 55 GB and tempdbby 55 GB. When I operated the server today, the lower right corner of the page prompts "disk C is not enough "! Scared !~Look at drive C, there are still 7 M !!! How can I lose such a

Xinxing analyzes several keywords in the database.

Xinxing analyzes several keywords in the database. The first is the candidate keyword. It refers to the candidate keyword of a given link that has one or more attributes with unique identifiers. For example, if a student has an ID card number and a

Using datafile copy to rename a data file, datafilecopy

Using datafile copy to rename a data file, datafilecopy Ideas: O use RMAN to copy data files O offline O switch file name. This step changes the file name corresponding to the data file in the control file. O recover data files O online data files

Test SQL left join on and where efficiency, sqljoin

Test SQL left join on and where efficiency, sqljoin Recently, many of my predecessors used left join on, so I checked it online for a long time. I felt that it was not great. So I tested it. Although not rigorous, it has already reflected general

Database Query analyzer 6.03: How to Operate Domestic DM databases flexibly and quickly, db6.03

dsn

Database Query analyzer 6.03: How to Operate Domestic DM databases flexibly and quickly, db6.03  Database Query analyzer 6.03: How to Operate Domestic DM databases flexibly and quickly Magenfeng (Guangdong Union Electronic Service Co., Ltd.,

[ORACLE] analyzes 23 oracle sessions and performance statements, and 23 oracle session statements.

[ORACLE] analyzes 23 oracle sessions and performance statements, and 23 oracle session statements.**************************************** ********************************* *** Original article: blog.csdn.net/clark_xu Xu changliang's column**********

Oracle group by, oraclegroupby

Oracle group by, oraclegroupby The group by statement is used in combination with the aggregate function to GROUP result sets based on one or more columns.A group by statement is often required for Aggregate functions (such as SUM. SyntaxSELECT

Batch export the shell script and informaticaobject of the ICA object

Batch export the shell script and informaticaobject of the ICA object #!/bin/bash # -----------------------------------------------------------------------# Script Name: inf_impobj.sh# Purpose: To batch export mappings or workflows to xml files #

[Mysql] add, delete, modify, and query Mysql Databases in Java, Java System class, And javamysql

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MySQL Workbench query timeout time out (Lost Connection) solution, mysqlworkbench

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[Method] outputs the running metrics of workflow to target, and workflowtarget

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ORA-14551: cannot perform a DML operation inside a query, ora-14551dml

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Pentaho schema workbench graphic tutorial,

Pentaho schema workbench graphic tutorial,Pentaho schema workbench graphic tutorial   The following is a simple example to describe how to use schema workbench. The table example shows a simple sales table, product, product category, and customer

When should MongoDB be used?

When should MongoDB be used? This article seriously mentions the difficulties encountered in using MongoDB and the reasons for eventually abandoning MongoDB. I spent a lot of time reading the review, but I have not carefully read the comments. If

View the table structure in mysql, and view the table structure in mysql

View the table structure in mysql, and view the table structure in mysql Query the table structure under the Mysql shell command line: 1. desc (description) commandDesc tablename; Describe tablename; 2. show command Show columns from

Oracle dbms_random.value, dbms_random.value

Oracle dbms_random.value, dbms_random.value Dbms_random is a package that can generate random values or strings. There are two usage methods for value () in the package:If there is no parameter in the first type, a 38-bit precision value is

For beginners of PostgreSql, learn the basic commands and summary of postgresql

For beginners of PostgreSql, learn the basic commands and summary of postgresql 1. log on to the database through the command line There are two methods: one is to directly execute the psql command under the system shell; the other is to first enter

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