Oracle 1z0-908 Dumps

Execute SET GLOBAL log_error = ‘’.

Execute SET GLOBAL max_error_count = .

Execute SET GLOBAL expire_logs_days=0 to enforce a log rotation.

Rename the error log file on disk, and then execute FLUSH ERROR LOGS.

Only internal temporary tables from the optimizer will be created in tmpdir.

Temporary tables will use the InnoDB temporary tablespace located in datadir.

Temporary tables are created in tmpdir only if configured to use MyISAM.

Temporary tables are created in tmpdir only after they reach tmp_tabie_size.

Temporary tables will use the InnoDB temporary tablespace located in /tmp.

MySQL TDE uses an appropriate keyring plugin to store the keys in a centralized location.

Both MyISAM and InnoDB tables can be encrypted by setting the keyring_engine = ALL variable in the MySQL configuration file.

Lost tablespace encryption keys can be regenerated only if the master database key is known or present in the Key Vault specification.

TDE can encrypt InnoDB and MyISAM tables only when the tables are stored in the SYSTEM tablespace.

--shared-memory-base-name=world

--protocol=UDP

--protocol=pipe

--password

--user=admin

--host=192.0.2.1

--socket=/tmp/mysql.sock

Remove ib_logfile0 and ib_logfile1 files from the file system.

Execute mysqladmin flush-logs.

First run mysqld --initialize to refresh the Size of ib_logfile.

Create a new ib_logfile0 file of size 26214400.

Mark can grant the privileges assigned to the r_read@localhost role to another user.

ADMIN OPTION causes the role to be activated by default.

Mark can grant the r_read@localhost role to another user.

Mark can revoke the r_read@localhost role from another role.

ADMIN OPTION allows Mark to drop the role.

Mark must connect from localhost to activate the r_read@localhost role.

DESCRIBE manufacturing.parts;

SELECT * FROM information_schema.statistics WHERE table_schema=’manufacturing’ AND TABLE_NAME=’parts’;

SHOW INDEXES FROM manufacturing.parts;

SELECT * FROM information_schema.COLUMN_STATISTICS;

EXPLAIN SELECT INDEXES FROM manufacturing.parts;

It is the time between the I/O thread receiving details of the master's last transaction and the time it was applied by the SQL thread.

It is the time between the most recent transaction written to the relay logs and the time it was committed on the master.

It is the time between the I/O thread receiving details of the master’s last transaction and the time it was written to the relay log on the slave.

It is the time between the most recent transaction applied by a SQL thread and the time it was committed on the master.

sort_buffer_size

key_buffer_size

table_open_cache

read_buffer_size

innodb_buffer_pool_size

tmp_table_size

Roll back the transaction and start the transaction again in the same session.

Re-execute the failed statement in your transaction.

Change the default database and re-execute the failed statement in your transaction.

Close the connection, reconnect, and start the transaction again.

slave updates logging

semi-sync replication plugin

primary key or primary key equivalent on every table

binary log checksum

binary log ROW format

binary log MIXED format

replication filters

Remove the redo logs. Replace the MySQL binaries with the 5.7.28 binaries. Prepare the tables for upgrade. Upgrade to 8.0.18 again.

Execute: mysqlcheck --check-upgrade mysql columns_priv event proc proxies_priv tables_priv.

Start mysqld again using the --upgrade=FORCE option.

Execute: mysqlcheck --repair mysql columns_priv event proc proxies_priv tables_priv.

Go to the /mysql directory and execute: myisamchk --update-state columns_priv event proc proxies_priv tables_priv.

user_variables_by_thread

global_variables

variables_by_thread

session_variables

Set validate-user-plugins=caching_sha2_password in the configuration file.

Define CREATE USER ''@'%' IDENTIFIED WITH sha256_password in the MySQL instance.

Add default_authentication_plugin=mysql_native_password in the configuration file.

Add default_authentication_plugin=sha256_password in the configuration file.

It can be recovered from a donor instance on host3 by cloning using the command cluster.rejoinInstance ('@host3:3377')

It can rejoin the cluster by using the command cluster.addInstance('@host3:3377')

It has been removed from the cluster by using the command STOP GROUP_REPLICATION;

It can rejoin the cluster by using the command dba.rebootClusterFromCompleteOutage()

It has been expelled from the cluster because of a transaction error.

/usr/mysql

/usr/bin

/etc/my.cnf

/var/lib/mysql

/usr

They take roughly twice as long as logical backups.

They allow direct copying of table rows with operating system copy commands.

They work best for transaction storage engines that can perform their own recovery when restored.

The backup window is almost zero from the perspective of the application.

They do not back up views, stored procedures, or configuration files.

There is a slight performance cost while the snapshot is active.

They do not use additional disk space.

The cluster will shut down to preserve data consistency.

The cluster has built-in high availability and updates group_replication_ip_whitelist to remove the unreachable nodes.

The group replication will buffer the transactions on the online nodes until the unreachable nodes return online.

There could be both a 2 node and 3 node group replication still running, so shutting down group replication and diagnosing the issue is recommended.

A manual intervention to force group members to be only the working two instances is required.

general query log

audit log

slow query log

binary log

error log

information_schema

world

employee

sys

mysql

It can be dropped using the DROP ROLE statement.

It is stored in the mysql.role table.

It is created as a locked account.

It can be renamed using the RENAME ROLE statement.

It can be granted to user accounts.

It can be protected with a password.