实际上, 如果你查看sqlite3程序的源码 (found in the source tree in the file src/shell.c), you'll find exactly the above query. 另外,".tables"命令后也可以跟一参数,它是一个pattern,这样命令就只列出表名和该参数匹配的表。 比如,示例14-1: sqlite> .tables .tables android_metadata bookmarks sys...
QStringList tables = database.tables(); //获取数据库中的表 qDebug() << QString::fromLocal8Bit("表的个数: %1").arg(tables.count()); //打印表的个数 QStringListIterator itr(tables); while (itr.hasNext()) { QString tableNmae = itr.next().toLocal8Bit(); qDebug() << QString...
.vfslist List all available VFSes .vfsname ?AUX? Print the name of the VFS stack .width NUM1 NUM2 ... Set minimum column widthsforcolumnar output sqlite> .tables# 查看表Departments Marks Students Tests sqlite> .backup bak.db# 备份 注意数据库名区分大小写,没有DROP命令,直接删除文件即可删除...
.system CMD ARGS...Run CMD ARGS... in a system shell .tables ?TABLE?List names of tables matching LIKE pattern TABLE .testcase NAMEBegin redirecting output to 'testcase-out.txt' .testctrl CMD ...Run various sqlite3_test_control() operations .timeout MS尝试打开锁定的表 MS 毫秒 .timer ...
sqlQuery.prepare(createSql); // 执行sql语句 if(!sqlQuery.exec()) { qDebug() << "Error: Fail to create table. " << sqlQuery.lastError(); } else { qDebug() << "Table created!"; } 第一行定义一个 QSqlQuery 对象。 第二行是一个 QString,其中的内容是 SQLite 语句。对数据库的操作...
tables().contains(tableName)) { return true; } return false; } void SqliteBasic::queryTable() { QSqlQuery sqlQuery; sqlQuery.exec("SELECT * FROM student"); if(!sqlQuery.exec()) { qDebug() << "Error: Fail to query table. " << sqlQuery.lastError(); } else { while(sqlQuery....
FILE?Send output toFILEor stdoutifFILEis omitted.quit Exitthisprogram.readFILERead inputfromFILEor command output.schema?PATTERN?Show theCREATEstatements matchingPATTERN.show Show the current valuesforvarious settings.tables?TABLE?List namesoftables matchingLIKEpatternTABLE... sqlite...
This brings us to the last step of SQLite to SQL Server migration. Click on the linked server stem and expand it to the tables. You can then simply query the tables as follows: Select * from openquery(Mobile_Phone_DB_64 , 'select * from db_notes') GO You can make a table in your...
thrownewSQLException ("No to do item found for row:" + rowIndex); } returnresult; } publicTodoItem getToDoItem(longrowIndex) throwsSQLException { Cursor cursor=mDb.query(DATABASE_TABLE, newString[]{KEY_ID,KEY_TASK,KEY_CREATION_DATE}, ...
News> QueryNew(int id) { return await db.Table<Model.News>().Where(a => a.Id == id).FirstOrDefaultAsync(); } public async Task<List<Model.News>> QueryNews(int pageSize) { return await db.Table<Model.News>().OrderByDescending(a => a.DateAdded).Skip(0).Take(pageSize).ToList...