January, 2021

• 3 January

  Python Flask Merhaba Dünya

  

  Merhaba, bu yazıda Flask’a başlangıç yapacağız. IDE olarak ben PyCharm kullanıyorum, yeni bir proje oluştururken Flask kütüphanelerini hazır olarak ekliyor, pek zaman kaybetmemiş oluyoruz. Hatta bizim için ilk Hello Word …

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• 3 January

  MySQL Router HA with Keepalived | MySQL InnoDB Cluster

  

  keepalive provides frameworks for both load balancing and high availability. The load balancing framework relies on the well-known and widely used Linux Virtual Server (IPVS) kernel module, which provides Layer …

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December, 2020

• 29 December

  MySQL InnoDB Cluster with MySQL Shell MySQL Router using just Docker containers

  Setting up MySQL InnoDB Cluster with MySQL Shell (plus MySQL Router) using just Docker containers. MySQL InnoDB cluster provides a complete high availability solution for MySQL. Each MySQL server instance …

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• 29 December

  ORA-19750: change tracking file | ORA-19751 ORA-17502 ORA-15046 ORA-17503 ORA-15012

  

  I got ” ORA-19750: change tracking file | ORA-19751 ORA-17502 ORA-15046 ORA-17503 ORA-15012 ” error in Oracle database during Open resetlogs.

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• 29 December

  Error 1017 received logging on to the standby | ORA-16191

  

  I got ” Error 1017 received logging on to the standby | ORA-16191 ” error in Production for Oracle Dataguard.

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• 28 December

  RMAN-12008: could not locate backup piece | RMAN-12009

  

  I got “ RMAN-12008: could not locate backup piece | RMAN-12009 ” error in Oracle database during RMAN Restore datafile.

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• 18 December

  How to Distribute the RMAN Backups for Multiple Disks in Oracle

  

  I will explain How to Distribute the RMAN Backups for Multiple Disks in Oracle in this post.

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• 17 December

  ORA-17503: ksfdopn Failed to open file | ORA-01565 ORA-17503 ORA-01034 ORA-27121

  

  I got “ ORA-17503: ksfdopn Failed to open file | ORA-01565 ORA-17503 ORA-01034 ORA-27121 ” error in Oracle database during startup.

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• 16 December

  How to Create Drop ( Remove ) or Resize ACFS File System in Oracle

  

  I will explain How to Create Drop ( Remove ) or Resize ACFS File System in Oracle in this post.

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• 16 December

  RMAN-06169: could not read file header | RMAN-06056: could not access datafile

  

  I got ” RMAN-06169: could not read file header | RMAN-06056: could not access datafile ” error in Oracle database.

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• 16 December

  ORA-12906: cannot drop default temporary tablespace

  

  I got ” ORA-12906: cannot drop default temporary tablespace ” error in Oracle database.

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• 16 December

  ORA-15001: diskgroup “DATA” does not exist or is not mounted | ORA-15018 ORA-15001 RMAN-06956

  

  I got ” ORA-15001: diskgroup “DATA” does not exist or is not mounted | ORA-15018 ORA-15001 RMAN-06956 ” error in Oracle database.

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• 16 December

  dbms_lock.sleep Grant Execute Privilege in Oracle

  

  I will explain dbms_lock.sleep Grant Execute Privilege in Oracle in this post.

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• 16 December

  MRP0: Background Media Recovery terminated with error 1274 | ORA-01274: cannot add data file

  

  I got ” MRP0: Background Media Recovery terminated with error 1274 after adding a Datafile ” error in Oracle dataguard ( Standby Site ).

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• 15 December

  RMAN-06571: datafile 1 does not have recoverable copy

  

  I got ” RMAN-06571: datafile 1 does not have recoverable copy ” error in Oracle database during restore database.

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• 15 December

  ORA-01167: two files are the same file | ORA-01503: CREATE CONTROLFILE failed

  

  I got ” ORA-01167: two files are the same file | ORA-01503: CREATE CONTROLFILE failed ” error in Oracle database during controlfile creation.

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• 15 December

  ORA-01678: parameter db_file_name_convert must be pairs of pattern and replacement strings

  

  I got ” ORA-01678: parameter db_file_name_convert must be pairs of pattern and replacement strings ” error in Oracle database.

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• 15 December

  ORA-07217: sltln: environment variable cannot be evaluated

  

  I got ” ORA-07217: sltln: environment variable cannot be evaluated ” error in Oracle database during catalog files.

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• 15 December

  ORA-14060: data type or length of a table partitioning column may not be changed

  

  I got ” ORA-14060: data type or length of a table partitioning column may not be changed ” error in Oracle database during startup 2 nodes Oracle RAC.

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• 15 December

  ORA-39046: Metadata remap REMAP_TABLESPACE has already been specified.

  

  I got ” ORA-39046: Metadata remap REMAP_TABLESPACE has already been specified ” error in Oracle database during startup 2 nodes Oracle RAC.

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• 13 December

  ORA-01617: cannot mount: 2 is not a valid thread number

  

  I got ” ORA-01617: cannot mount: 2 is not a valid thread number ” error in Oracle database during startup 2 nodes Oracle RAC.

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• 12 December

  Oracle 21c is Available and Oracle 21c New Features

  

  I will explain Oracle 21c is Available and Oracle 21c New Features in this post. Let’s review the Oracle 21c New Features .  

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November, 2020

• 30 November

  DDL_LOCK_TIMEOUT Parameter Usage to Avoid ORA-00054: resource busy error

  

  I will explain the DDL_LOCK_TIMEOUT Parameter Usage to Avoid ORA-00054: resource busy error in this post. let’s review the DDL_LOCK_TIMEOUT Parameter | ORA-00054: resource busy error.

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• 30 November

  ORA-12990: duplicate option specified

  

  I got ” ORA-12990: duplicate option specified ” error in Oracle database during import ( impdp ).

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• 30 November

  ORA-14639: SUBPARTITIONS clause can be specfied only for Hash Composite Range Hash table/partition

  

  I got ” ORA-14639: SUBPARTITIONS clause can be specfied only for Hash Composite Range Hash table/partition ” error in Oracle database during table creation.

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