Development

Issue Overview: System.Data.SQLite 1.0.118.0 Fails on Windows with Single-File Deployment The core issue revolves around the System.Data.SQLite library version 1.0.118.0, which introduces a critical bug when used in single-file deployment scenarios on Windows. Specifically, when the -p:PublishSingleFile=true option is enabled during the build process, the application throws an System.ArgumentNullException with the message "Value cannot be…

Issue Overview: RETURNING Clause Fails in SQLite with ODBC and Older Versions The RETURNING clause in SQLite is a powerful feature that allows developers to retrieve the values of inserted, updated, or deleted rows directly within the same SQL statement. This feature is particularly useful for applications that need immediate feedback on the data modifications…

Issue Overview: Mismatched Architecture Between SQLite Binary and Ubuntu Host When attempting to execute the SQLite 3.34 command-line tool (sqlite3) downloaded from the official website on Ubuntu 20.04 systems, users encounter a paradoxical error: $ ./sqlite3 bash: ./sqlite3: No such file or directory This occurs despite confirming the file’s existence through ls, md5sum, and direct…

Understanding the SQLITE_TOOBIG Error and SQL Statement Length Limits The SQLITE_TOOBIG error occurs when an SQL statement exceeds the maximum allowed size configured in the SQLite environment. This error manifests as "[SQLITE_TOOBIG] String or BLOB exceeds size limit (statement too long)" and often arises in applications that dynamically generate large SQL statements, such as batch…

Issue Overview: SQLITE_BUSY Error Due to Unclosed Statements or External Locks The SQLITE_BUSY error is a common issue encountered by developers working with SQLite databases. This error occurs when SQLite is unable to acquire a lock on the database file, which is necessary for performing write operations or certain read operations. The error typically arises…

PRAGMA user_version Integer Overflow and Silent Value Handling Understanding PRAGMA user_version Overflow Behavior and Silent Value Rejection The PRAGMA user_version mechanism in SQLite allows developers to store a 32-bit signed integer in the database header. This value is often used to track schema versions, migration states, or custom metadata. However, when values exceeding the 32-bit…

Understanding JSON Property Order in SQLite The issue of whether SQLite’s JSON functions preserve the order of properties within JSON objects is a nuanced topic that touches on both the technical implementation of SQLite and the broader specifications of JSON itself. JSON, or JavaScript Object Notation, is a lightweight data interchange format that is easy…

Issue Overview: Null Pointer Dereference in SQLite Extension Loading API Under Armor Mode The core problem revolves around a segmentation fault or null pointer dereference crash occurring when calling the sqlite3_enable_load_extension() function with a NULL database handle (sqlite3* db) while SQLite is compiled with the -DSQLITE_ENABLE_API_ARMOR flag. This flag is designed to harden SQLite’s public…

Atomic Intrinsic Compatibility in SQLite: GCC-Specific Functions vs. C11 Standards Issue Overview: Mismatched Atomic Intrinsic Implementations in Non-GCC Compilers The core issue arises from SQLite’s reliance on GCC-specific atomic intrinsic functions (__atomic_load_n and __atomic_store_n) in environments where non-GCC compilers are used. These compilers may support the C11 standard atomic operations (atomic_load and atomic_store) but lack…

Understanding the Reserve Bytes Requirement for Checksum VFS Shim The core issue revolves around configuring the reserve bytes value in an SQLite database to enable the Checksum VFS Shim. The Checksum VFS Shim is a mechanism that adds a checksum to each database page, which can be used to verify the integrity of the database….