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Database Administrators : Recent Questions and Answers (Page 24)

Find answers to your questions about Database Administrators or help others by answering their Database Administrators questions.

Mongodb 4.2 Brute Force Defense

Is there any tool or configurations for mongodb server to protect against brute force attacks on the user credentials? I found only authFailedDelayMs param witch Available in...

Asked on 10/28/2021 by Darii Petru

0 answer

Bridging Table Properties

I have a question on bridging tables: if I have a bridging table linking two tables (standard) with the only values in the bridging table being the Primary Keys for...

Asked on 10/28/2021 by zv426

2 answer

Using Postgres param in a function

I'm trying to create a few functions to make the SQL queries between my SQLite and Postgres DB's the same. One thing I would like to do is change a...

Asked on 10/28/2021 by ovatsug25

1 answer

Error while upgrading SQL server 2012 to SQL 2017 : Failed to create a new folder 'X:\xxxx'. The specified path is invalid

Failed to create a new folder 'X:MSSQLDATAMSSQL11.MSSQLSERVERMSSQLLOG'. The specified path is invalid (for example, it is on an unmapped drive). I checked there is no X drive present in the...

Asked on 10/28/2021 by SunilGoswami

1 answer

Postgresql: Refreshing materialized view fails with "No space left on device" and a huge spike in disk usage

I have a materialized view that refreshes every five minutes. The SQL aggregates the data among many tables with over 800k rows in each. However, the when using the "REFRESH...

Asked on 10/28/2021

1 answer

Why did full backup file size grow after data movement for Availability Group replica was suspended?

Found an error log informing that data movement to a secondary availability replica was suspended. I'm not sure whether the cause of the suspension is relevant to answering my question,...

Asked on 10/28/2021

1 answer

InnoDB Buffer pool not showing as much I configured in MariaDB 10.5

I'm using MariaDB 10.5 on Centos7 with 4G RAM and 2 CPU. Here's my.cnf configuration[mysqld]log-error=/var/lib/mysql/mysql-3.kannel.com.errmax_allowed_packet=1Gevent_scheduler = ONinnodb_file_per_table=ON#innodb_file_format=Barracudainnodb_buffer_pool_size=3Ginnodb_buffer_pool_instances=6innodb_log_file_size=1Ginnodb_log_files_in_group=1innodb_log_buffer_size=32Minnodb_log_write_ahead_size=32Minnodb_flush_log_at_trx_commit=2innodb_read_io_threads=32innodb_write_io_threads=128innodb_io_capacity=10000innodb_thread_concurrency=6innodb_flush_method=o_directjoin_buffer_size=128Msort_buffer_size=20Mread_rnd_buffer_size=128Mdatadir=/var/lib/mysqlopen_files_limit=10000default-storage-engine=InnoDBmax_connections = 500# CACHES AND LIMITS #tmp-table-size ...

Asked on 10/28/2021 by Rajesh Ranjan

1 answer

Cannot access MYSQL safe mode using skip-grant-tables on Windows

I am running a MySQL server 8.0.21 on a Windows Server system. Recently I ran into an issue where my root user lost all its privileges.I am trying to...

Asked on 10/28/2021 by Augustus Buckman

0 answer

MySQL on RDS, data transfer from one instance to another as a production job

I have a MySQL RDS instance ("production") from which I need to copy incremental data to another MySQL RDS instance ("reporting"). “Incremental data” being the new rows in certain...

Asked on 10/28/2021 by Alex Lo

2 answer

How to represent foreign key in an ER diagram?

Suppose I have a 'Transactions' table which has a column 'Customer ID' (Foreign Key) and a Customer Table having 'ID' (Primary key). How do I show the relation between the...

Asked on 10/28/2021 by MK Singh

5 answer

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