Oracle raises this error when the referenced table or view cannot be found or accessed in the current schema.
ORA-00942 appears when Oracle can’t locate or access the specified table or view. Confirm the object name, qualify it with the correct schema, or grant the missing privileges to resolve the error.
ORA-00942: table or view does not exist
Oracle throws ORA-00942 when a SQL statement references a table or view that the database engine cannot locate in the current schema or through synonyms.
The error appears at parse time during SELECT, INSERT, UPDATE, DELETE, MERGE, CREATE VIEW, or PL/SQL compilation whenever Oracle verifies object names.
Queries fail, application features break, and PL/SQL packages cannot compile until the underlying object resolution problem is corrected.
Missing objects, misspelled names, incorrect schema prefixes, dropped or invalid synonyms, and insufficient privileges all trigger ORA-00942.
Locate the correct object, verify privileges, and adjust fully qualified names.
Re-grant permissions or create synonyms if cross-schema access is required.
Developers often rename or drop tables between environments, causing hard-coded SQL to fail.
DevOps scripts may run under service accounts lacking SELECT on production objects.
Use schema-qualified names, automated privilege grants, CI tests, and tools like Galaxy’s AI copilot to catch invalid references before deploys.
ORA-00904 invalid identifier and ORA-01722 invalid number often occur in tandem during migration scripts and benefit from similar validation steps.
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A typo in the table or view identifier prevents Oracle from finding the object.
The object exists but under a different owner, and the query omits the schema prefix.
The user lacks SELECT, INSERT, or EXECUTE rights on the referenced object.
An outdated synonym points to a table that was dropped or renamed.
A script references a table before it is created in the same execution batch.
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No. The table may exist but under a different schema or the user lacks privileges.
Not safely. Compile errors surface at runtime if ignored. Resolve all missing references.
Use cautiously. PUBLIC synonyms simplify access but can mask object ownership and cause security or naming conflicts.
Galaxy’s context-aware autocomplete and AI linting detect missing objects, suggest schema prefixes, and validate privileges during query authoring.
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