static void sqliteInitialize() { // Enable multi-threaded mode. In this mode, SQLite is safe to use by multiple // threads as long as no two threads use the same database connection at the same // time (which we guarantee in the SQLite database wrappers). sqlite3_config(SQLITE_CONFIG...
ORDER BY value DESC LIMIT 1;";dispatch_async(queue, ^{ sqlite3 *database = openDb(); sqlite3_stmt *stmt;if(sqlite3_prepare_v2(database, query,-1, &stmt,NULL) == SQLITE_OK) {while(YES) { sqlite3_bind_int(stmt,1, arc4random());intreturnCode = sqlite3_step(stmt);if(returnCod...
// Upgrade the existing database to conform to the new version. Multiple // previous versions can be handled by comparing _oldVersion and _newVersion // values. // The simplest case is to drop the old table and create a new one. _db.execSQL("DROP TABLE IF EXISTS " + DATABASE_TABLE...
Opening multiple databases importsqlite3from'sqlite3'import{open}from'sqlite'(async()=>{const[db1,db2]=awaitPromise.all([open({filename:'/tmp/database.db',driver:sqlite3.Database}),open({filename:'/tmp/database2.db',driver:sqlite3.Database}),])awaitdb1.migrate({migrationsPath:'...'...
Fix multiple CVE reported issueshttps://github.com/xerial/sqlite-jdbc/issues/501 2020-05-04: sqlite-jdbc-3.31.1 Upgrade to sqlite 3.31.1 Support update/commit/rollback event notifications #350 Remove sparse index checks #476 Support alpine linux (Linux-alpine) ...
sql the SQL statement to be executed. Multiple statements separated by semicolons are not supported. Throws SQLException//sql异常ifthe SQL string is invalid 介绍了上面的这些函数的使用方法,接下来我们来看看一些我学习时遇到的问题: 如果数据库字段太多,我们往往容易写错字段名或者字段类型。那么这个时候就要...
mysqldb.Insertable(newOrder() { CreateTime = DateTime.Now, CustomId =1, Name ="a", Price =1}).ExecuteCommand(); mysqldb.Queryable<Order>().ToList(); sqlServerdb.Queryable<Order>().ToList(); db.CommitTran(); Feature6 : Singleton Pattern ...
Do not include sqlite-jdbc-(version).jar in WEB-INF/lib folder of your web application package, since multiple web applications hosted by the same Tomcat server cannot load the sqlite-jdbc native library more than once. That is the specification of JNI (Java Native Interface). You will obser...
FMDatabaseQueuewill run the blocks on a serialized queue (hence the name of the class). So if you callFMDatabaseQueue's methods from multiple threads at the same time, they will be executed in the order they are received. This way queries and updates won't step on each other's toes...
The checksum values are always stored in the frame header in a big-endian format regardless of which byte order is used to compute the checksum. The checksum algorithm only works for content which is a multiple of 8 bytes in length. In other words, if the inputs are x(0) through x(N...