PRAGMA pragma_name;Forexample:PRAGMA page_size;PRAGMA cache_size=1024;PRAGMA table_info(table_name); SQLite RELEASE SAVEPOINT 语句: RELEASE savepoint_name; SQLite REINDEX 语句: REINDEX collation_name;REINDEX databas
Extension APIs sometimes add the extension name prior to the underscore; for example: sqlite3rbu_ or sqlite3session_. Tokenizer When a string containing SQL statements is to be evaluated it is first sent to the tokenizer. The tokenizer breaks the SQL text into tokens and hands those tokens ...
PRAGMA cache_size = 10000; -- 设置缓存大小为 10000 页 1. 启用异步 I/O: PRAGMA synchronous = NORMAL; -- 允许异步写操作 1. 调整页面大小: PRAGMA page_size = 4096; 1. 2. 批量操作 批量插入:使用单个事务插入多条数据比逐条插入更高效。 conn = sqlite3.connect('example.db') cur = conn.cu...
PRAGMA pragma_name; For example: PRAGMA page_size; PRAGMA cache_size = 1024; PRAGMA table_info(table_name); SQLite RELEASE SAVEPOINT 语句: RELEASE savepoint_name; SQLite REINDEX 语句: REINDEX collation_name; REINDEX database_name.index_name; REINDEX database_name.table_name; SQLite ROLLBACK 语...
For example: PRAGMA page_size; PRAGMA cache_size = 1024; PRAGMA table_info(table_name); SQLite RELEASE SAVEPOINT语句 1 RELEASE savepoint_name; SQLite REINDEX语句 1 2 3 REINDEX collation_name; REINDEX database_name.index_name; REINDEX database_name.table_name; SQLite ROLLBACK语句 ...
In the following example, the optimizer calculates the degree of parallelism, but that degree may be 1, in which case the statement will run serially. SELECT /*+ PARALLEL (AUTO) */ last_name FROM employees; 1. 2. In the following example, thePARALLELhint advises the optimizer to use the...
For example: window.sqlitePlugin.openDatabase({name: 'my.db', location: 'default'}, function(db) { db.transaction(function(tx) { // ... }, function(err) { console.log('Open database ERROR: ' + JSON.stringify(err)); }); }); If any sql statements or transactions are attempted ...
sqlite3_config(SQLITE_CONFIG_PAGECACHE, pBuf, sz, N); The pBuf parameter is a pointer to a contiguous range of bytes that SQLite will use for page-cache memory allocations. The buffer must be at least sz*N bytes in size. The "sz" parameter is the size of each page-cache allocation....
Download sqlite-jdbc-(VERSION).jar from thedownload page(or by usingMaven) then append this jar file into your classpath. Open a SQLite database connection from your code. (see the example below) More usage examples are available atUsage ...
Copy the database file for example to your project or any other folder Script/Migrate! Script entire schema and/or all data from SQL Server Compact, SQLite and SQL Server databases, and choose tables to script - with high fidelity Import to SQL Server Compact or SQLite from a SQL Server ...