compress.c—application-defined SQL functionscompress() 和 uncompress() 的实现,对文本或 blob 内容进行 zLib 压缩。 json1.c—JSON SQL functions和table-valued functions的实现。这是一个更大、更复杂的扩展。 memvfs.c— 实施新的VFS,将所有内容存储在内存中。 rot13.c—rot13()SQL 函数的实现。这是一...
hash_functions (bool)– Make hashing functions available (md5, sha1, etc). regexp_function (bool)– Make the REGEXP function available. bloomfilter (bool)– Make the bloom filter available. Extends SqliteDatabase and inherits methods for declaring user-defined functions, pragmas, etc.class...
Built-in functions may be overloaded by new application-defined functions. An application-defined function is permitted to call other SQLite interfaces. However, such calls must not close the database connection nor finalize or reset the prepared statement in which the function is running....
When SQLite tries to access a file that is locked by another process, the default behavior is to return SQLITE_BUSY. You can adjust this behavior from C code using the sqlite_busy_handler() or sqlite_busy_timeout() API functions. See the API documentation for details. If two or more pr...
大多数数据库都具有 SQL 的过程方言,用户可以使用它定义自己的函数。 但是,SQLite 将在你的应用的进程内运行。 无需学习新的 SQL 方言,只需使用应用的编程语言即可。 标量函数 标量函数为查询中的每一行返回单个标量值。 定义新的标量函数,并使用CreateFunction覆盖内置函数。
Multi-threading support is low-priority and untested. If your application-defined functions and virtual tables don't reference data outside of the database they are attached to, this will not cause issues because SQLite always does database operations in a single thread. However, the API needs...
btree.c- This file contains the implementation of the B-Tree storage engine used by SQLite. The interface to the rest of the system is defined by "btree.h". The "btreeInt.h" header defines objects used internally by btree.c and not published to the rest of the system. ...
SQLite FTS3 and FTS4 Extensions 1.介绍FTS3和FTS4 1.1.FTS3和FTS4之间的差异 1.2.创建和销毁FTS表 1.3.填充FTS表 1.4.简单的FTS查询 1.5.概要 2.编译并启用FTS3和FTS4 3.全文索引查询 3.1.使用增强查询语法设置操作 3.2.使用标准查询语法设置操作 4.辅助功能 - 片段,偏移和匹配信息 4.1.偏移函数 4.2....
SQLite As An Application File Format SQLite Autoincrement SQLite Backup API SQLite Changes From Version 3.4.2 To 3.5.0 SQLite Changes From Version 3.5.9 To 3.6.0 SQLite Database Speed Comparison SQLite File IO Specification SQLite Frequently Asked Questions SQLite In 5 Minutes Or Less SQLite is...
sqlite: allow returning ArrayBufferViews from user-defined functions #39460 Sign in to view logs Summary Jobs lint-commit-message Run details Usage Workflow file Triggered via pull request January 31, 2025 01:12 Renegade334 synchronize #56790 Renegade334:sqlite-function-arraybufferview Stat...