HRESULT 0x87AF0C0A (SQLITE_E_IOERR_NOMEM): meaning and diagnosis

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SQLITE_E_IOERR_NOMEM means the SQLite VFS could not allocate enough memory for an I/O operation.

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SQLITE_E_IOERR_BLOCKED	SQLITE_E_IOERR_ACCESS

SQLITE_E_IOERR_NOMEM

SQLITE_E_IOERR_NOMEM corresponds to SQLITE_IOERR_NOMEM. SQLite documents it as a VFS-layer inability to allocate sufficient memory; higher layers normally translate it to SQLITE_NOMEM before applications see it.

What to check

Check process memory limits, address-space pressure, and allocation failures around the operation.
If the code reaches application logs, determine whether a custom VFS or extension bypassed SQLite’s normal translation.
Capture the exact SQLite version and build options before attributing the failure to the database file.

SELECT sqlite_version();

SQLite: Result and Error Codes

SQLite: Extended Result Codes

SQLite: VFS interface

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