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Tag Archives: RETENTION GUARANTEE

ORA-01555 Snapshot Too Old / ORA-30036: unable to extend segment by string in undo tablespace

dbtut July 4, 2018 ORACLE 0

ORA-01555 Snapshot Too Old The “ORA-01555 Snapshot Too Old” error usually comes in long-running queries. In Oracle, previous changes of the data are retained in …

How To Create Tablespace On Oracle

dbtut June 29, 2018 ORACLE 0

Tablespaces are areas dedicated to storing objects in the database. Tablespaces are logical constructs. However, it contains physical data files or temp files. There are …