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  DotConnect for Oracle getting started Guide (7): stored procedures

  [download the latest version of dotConnect for Oracle] dotConnect for Oracle (formerly known as OraDirect.NET) is based on ADO.NET technology and provides services for applications based on Oracle databases

  2022-06-01 09:30:19 Views: 252
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  Special flip-flop through shell timing switch

  The work encountered this strange demand temporarily, so I wrote a shell script to implement this function. In the spirit of open source sharing, we will share practical information with you. I hope I can help you solve this problem in your work. 1. You need to set up two scripts to turn on and off the trigger # # this is the closing foot.

  2022-06-01 09:30:18 Views: 299
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  Mysql error [1] [ERROR] Missing system table mysql.proxies_priv

  Environment: mysql one master one slave architecture, the master library is mysql5.1, the slave library is mysql5.6; system is CentOS6.2 problem: the SQL statement executed on the master library 1. Create table CREATE TABLE `app_ versions`

  2022-06-01 09:30:15 Views: 216
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  ERROR: Error appeared during Puppet run: x.x.x.x _ keystone.pp

  Error ERROR: Error appeared during Puppet run: x.x.x.x_keystone.ppError: / stage [main] / Keystone::Db::Syn

  2022-06-01 09:30:15 Views: 287
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  Set oracle to start automatically

  1. After installing the Oracle database: execute dbstart and dbshut will prompt: [oracle@oracle11g ~] $dbstartORACLE_HOME_LISTNER is not SET, u

  2022-06-01 09:30:15 Views: 203
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  Master-slave synchronization of MySQL database (single 2 instance)

  Foreplay # install yum install-y mysql-server mysql mysql-devel# different instance directories mkdir / data/ {3306 < 3307}-p # authorize chown-R my

  2022-06-01 09:30:14 Views: 225
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  Oracle database version number actual combat command query

  This article demonstrates the process of upgrading from oracle 10.2.0.1.0 to 10.2.0.4.0. An upgrade like this is called a small version upgrade, if you upgrade from 10.1.0.1.0 to 10.2.0.4.0 or from oracle 10g to

  2022-06-01 09:30:14 Views: 233
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  Usage of MySQL NULLIF function

  The MySQL NULLIF function and how to use it to prevent division by zero errors in the query, the NULLIF function is one of the control flow functions that take two parameters. The NULLIF function returns NULL if the first parameter is equal to the second parameter, otherwise the first parameter is returned.

  2022-06-01 09:30:13 Views: 283
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  Field type of django models

  Django database field type: 1. Models.AutoField auto-increment column = int (11) if not, a column named id will be generated by default. If you want to display a custom self-increment column, you must set the column as the primary key prima

  2022-06-01 09:30:13 Views: 225
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  Detailed explanation of PostgreSQL configuration parameters and solutions to configuration errors (2)

  . / configure compilation parameter description:-- prefix specifies the installation directory. -- bindir specifies the directory of the executable program-- sysconfdir sets various configuration texts by default

  2022-06-01 09:30:02 Views: 229
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  [MongoDB Learning Notes 29] GridFS storage depth of MongoDB

  The principle of GridFS is to divide a large file into several larger blocks and store each block as a separate document. (1) blocks in GridFS are stored in a dedicated collection. The default is fs.chunks; (2) in addition to storing each block of a file separately, you also need to

  2022-06-01 09:29:35 Views: 275
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  Zabbix3.0 LNMP installation and deployment

  Preparation before installation: 1.1 operating environment description of this instance: operating system version: CentOS 7, first of all, to build the Zabbix operating environment: LNMP (Linux + nginx+ MySQL + PHP) CentOS 7N

  2022-06-01 09:29:35 Views: 212
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  Connection to the database

  Table boy, the data are as follows: table girl, the data are as follows: 1. Internal connection inner join: problem: use sql to find out the complete family ID and user name of the family in the boy and girl tables? select boy.hid,boy.name,gir

  2022-06-01 09:29:23 Views: 284
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  Detailed explanation of MemStore+Flush of HBase

  Introduction to MemStore: the figure above shows a general description of the reading and writing process of HBase; write request process: client- > WAL (Write Ahead LOG)-> MemStore-

  2022-06-01 09:29:20 Views: 238
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  Common mysql operations (including mysqldump,pt-table)

  Production mysqldump parameters mysqldump-uroot'- pxx'-Q-- all-databases-- lock-all-tables-- routines-- triggers-- ev

  2022-06-01 09:29:20 Views: 230
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  Installation of dblink and tablefunc modules for Greenplum

  1. Install the dblink module and log in to the master node and switch to the GP user [gpadmin@mdw ~] # su-gpadmin to download the source code package and decompress it, and enter [gpadmin@mdw ~] $wget http under the dblink directory.

  2022-06-01 09:29:19 Views: 268
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  Python inserts mysql database data

  Establish database connection def create_db_connect (): "brief info for: create_db_connect establish database link Args: Return: Raise:"

  2022-06-01 09:29:19 Views: 256
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  New feature of MySQL 8.0-- CTE (1)

  1, introduction to CTE MySQL supports CTE from 8.0, slowly learn from Oracle, CTE is really a very useful thing, especially for the OLAP type of SQL, can be greatly simplified, optimize SQL. So what is CTE? Personal understanding: CTE (c)

  2022-06-01 09:29:19 Views: 246
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  Innodb_undo_tablespaces parameter

  Innodb_undo_tablespaces is a parameter that controls whether undo enables independent tablespaces: undo uses system tablespaces, that is, if ibdata1 is not 0, it means: use independent tablespaces, commonly named undo001 und.

  2022-06-01 09:29:13 Views: 247
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  Matters needing attention in installing zip under mysql5.7windows

  1. Download the zip package on the official website. I downloaded mysql-5.7.16-winx642. Unzip it and put it in any directory. I put D:\ mysql-5.7.16-winx643. Configure environment variables (D:\ mysql-5.7.16-win

  2022-06-01 09:29:13 Views: 276