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  Mysql query according to time condition ignore time minute and second query

  The database stores the data in the format of 12:22:23, 2018-11-06, and then the page query conditions are > = 2018-11-06 and < = 2018-11-06. I want to query all the data on No. 6, but sometimes it leads to < = 2018-11-0.

  2022-06-01 09:56:40 Views: 236
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  Multiple solutions to the inability of Oracle 11g to derive empty tables

  Empty table cannot be exported: check the data and found that there is a new feature in Oracle 11g: a new parameter "deferred_segment_creation" means segment delay creation, and the default is true. What does it mean exactly? Deferred

  2022-06-01 09:56:35 Views: 285
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  Easily master the way of database management-- operation and maintenance patrol inspection series

  Patrol inspection is a necessary maintenance item for database administrators to ensure the health of the database. Comprehensive inspection can find, solve and prevent problems as soon as possible. In fact, many database maintenance personnel do not know much about the database (often concentrated in traditional industries), are not professional DBA, and at the same time have multiple roles (industries).

  2022-06-01 09:56:28 Views: 275
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  Use T-SQL statements to manipulate data tables-delete data

  1. Delete the data in the table using the delete statement: syntax: delete from < table name > [where < delete condition >] delete means delete. Where means optional content can be deleted, but without conditions, the entire table example can be deleted.

  2022-06-01 09:56:28 Views: 255
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  ERROR 1045 (28000): Access denied for user 'root'@

  ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using passwor error description: login may occur after adding a user in Mysql

  2022-06-01 09:56:28 Views: 226
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  PostgreSQL plug-in hook mechanism

  Internal_load_library postgresql- > PG_init = (PG_init_t) pg_dlsym (file_scanner- > handle, "_ PG_init

  2022-06-01 09:56:27 Views: 275
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  CRITICAL: VIP 192.168.1.100 not found on Master!

  1. Environment description MHAMariaDB 10.12, error message MHA management error message as follows: tail-f / var/log/masterha/manager.logCRITICAL: VIP 192.168.1.

  2022-06-01 09:56:27 Views: 215
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  Stop the Azure MySQL PaaS database

  Previously, I created the MySql PaaS database in Azure, but now I want to stop the Azure MySQL PaaS database because the test system is offline. But after looking for a long time on the Azure portal, I didn't find any stop options like virtual machines, only deletion.

  2022-06-01 09:56:27 Views: 216
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  Separation of LNMP components

  Environment [root@db01] # cat / etc/redhat-releaseCentOS release 6.7 (Final) [root@db01] # uname-r 2.6.32-573.

  2022-06-01 09:56:24 Views: 290
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  AIX7.1 installation oracle 11g

  Environment configuration: 1). Operating system version: # oslevel-s7100-01-06-1241 Mirror rootvg: # lsdev-Cc disk-- # View the allocation of the system disk hdisk0 Available

  2022-06-01 09:56:24 Views: 253
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  PL/SQL Developer combined with oracle thin client configuration instructions

  Oracle 11g Lite client configuration ORACLE is generally deployed on the server, and on the client, you need to use connection tools such as PL/SQL Developer to connect to the ORACLE on the server. And at this time, it often needs to be on the client.

  2022-06-01 09:56:21 Views: 243
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  015-backup, restore and data migration

  Backup: according to whether to back up all the data, the backup can be divided into: l full backup l incremental backup: refers to the backup of data that has changed since the last backup (incremental or complete); characteristics: saving space and restoring trouble. Differential backup: refers to the backup that has changed since the last full backup

  2022-06-01 09:56:21 Views: 220
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  Java performance Optimization Notes (1) Overview

  Performance reference indicator: execution time: the execution time of the program from start to finish. CPU time: the cpu time occupied by a function or thread. Memory allocation: the amount of memory occupied while the program is running. Disk throughput: hard disk Istroke O usage. Network throughput: network usage. Response time

  2022-06-01 09:56:14 Views: 240
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  The solution of html lang='zh' dir='ltr' class='ie ie7 error code when importing database

  Today, I encountered a problem that a customer made an error in importing the database. The error code after import is as follows: html {display: none asked the customer to send the file to me. After I imported it, there was still an error prompt with similar content. Later, it opened far.

  2022-06-01 09:56:14 Views: 236
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  Two query results similar to SQL, which have not been noticed before

  The results of two queries similar to SQL, which have not been paid attention to before, select A. else, case when x.resno is null then 0 else 1 end as isown from prm_res ale.

  2022-06-01 09:56:14 Views: 272
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  MongoDB user Management

  Create user syntax: db.createUser ({user:, # string pwd:, # string roles: [{role:,db:}] # array}) create user: > db.createUser (. {...

  2022-06-01 09:56:12 Views: 230
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  Installation and configuration of weblogic_server103.c

  Weblogic is a product of bea, which was later acquired by oracle. Weblogic is a middleware based on Javaee architecture and a java application server developed by pure java. WebLogic is mainly used to develop, integrate, deploy and manage large distributions

  2022-06-01 09:55:51 Views: 298
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  Oracle-deallocate unused releases High Water level Space (2)

  Deallocate unused: only suitable for releasing the space above the high water level of HWM, but not below the high water level. For example, the instructions and methods for the use of pre-allocated space in the table are described in the official documents, as shown below: Use the deallocate_u

  2022-06-01 09:55:47 Views: 294
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  Hot patching

  Online Patching description: this part is excerpted from the OCP 050textbook. The feature of online patch (also known as hot patch) is proposed in Oracle 11g; Hot patching allows us to

  2022-06-01 09:55:47 Views: 247
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  How to write the array passed in the test window by PLSQL

  Declare-- Non-scalar parameters require additional processingty_type arr_string;begin-- Call the pro

  2022-06-01 09:55:47 Views: 209