Free Gateway to Oracle Database (Free SQL)
For developers, students, and database enthusiasts, getting hands-on practice with a powerful database system like Oracle has often required...
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For developers, students, and database enthusiasts, getting hands-on practice with a powerful database system like Oracle has often required...
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PDB Lockdown Profiles are a security feature in Oracle’s multitenant architecture that allows administrators to restrict specific operations and features...
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Oracle Flex Clusters From Oracle Grid Infrastructure 12c Release 2 (12.2) onward, all cluster configurations are implemented as Oracle Flex...
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Losing OCR (Oracle Cluster Registry), voting disks, or ASM passwords in an Oracle RAC 19c environment is critical but recoverable....
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Oracle Globally Distributed Database Introduction Oracle’s 26ai release introduces a groundbreaking innovation: the Globally Distributed Database, a fully managed, horizontally scalable...
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A chained row is a row that does not fit into a single database block. For example, if you try...
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This error indicates that there’s a schema version mismatch between the ADRCI (Automatic Diagnostic Repository Command Interpreter) utility and the...
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When the password file is stored inside a disk group, it is automatically replicated across all disks in the group,...
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The GPnP profile is a XML file located in GRID_HOME/gpnp/<hostname>/profiles/peer under the name profile.xml. It is stored in the local...
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SQLFILE parameter in impdp can be used to generate the DDLs from a dumpfile. If you need the DDL of...
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Oracle Database includes a powerful internal mechanism called Feature Usage Statistics (FUS), which helps DBAs and system administrators track which...
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SQL Tuning Health-Check Script (SQLHC) is used to check the environment in which a single SQL statement is running, Cost-based...
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You can display information on all database session waits by below query. SET LINESIZE 200 SET PAGESIZE 1000 COLUMN...
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In some cases in Oracle databases, queries may run with bad plans due to optimizers not being able to make...
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Disk scrubbing is available on Exadata cell nodes to automatically repair bad sectors on the disk when the system is...
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