QSQLITE_BUSY_TIMEOUT ISC_DPB_LC_CTYPE ISC_DPB_SQL_ROLE_NAME Examples: ... // MySQL connection db.setConnectOptions("CLIENT_SSL=1;CLIENT_IGNORE_SPACE=1"); // use an SSL connection to the server if (!db.open()) { db.setConnectOptions(); // clears the connect option string ....
一、使用Qt自带的数据库sqlite3 Qt自带了很多常用的数据库驱动,使用起来非常方便如下图所示: 使用Qt自带数据库SQLite3的代码实例: Connect to Sqlite and do insert, delete, update and select Foundations of Qt Development\Chapter13\sqltest\sqlite\main.cpp/* * Copyright (c) 2006-2007, Johan Thelin * ...
Mac下PHP连接MySQL报错"No such file or directory"的解决办法 首先做个简短的介绍。 [说明1]MAC下MYSQL的安装路径:/usr/local/mysql-5.5.28-osx10.6-x86 数据库的数据文件在该目录的data文件夹中; 命令文件在bin文件夹中。 [说明2]通过终端打开MYSQL命令行的方法:/usr/local/mysql-5.5.28-osx10.6-x86/...
sqlite3_get_table(db, "select * from person", &resultp, &nrow, &ncolumn, &errmsg); *resultp保存数据库信息,nrow返回列数,ncolumn返回列数 b.查询部分信息 sqlite3_get_table(db, "select * from person where name='zhang'", &resultp, &nrow, &ncolumn, &errmsg); c.变量查询查询 char da...
sqlite>select * from sqlite_master; type = table name = tbl1 tbl_name = tbl1 rootpage = 3 sql = create table tbl1(one varchar(10), two smallint) sqlite> But you cannot execute DROP TABLE, UPDATE, INSERT or DELETE against the sqlite_master table. The sqlite_master table is updated ...
且create table和select是成功执行的。insert还未测试。<br>但是我是用如下代码做update时(我是用一个dialog显示QTableView中选中行的数据,点击确定时执行以下方法中代码:</p><pre><code class="cpp">QSqlQuery sqlQuery(m_sqliteDatabase); sqlQuery.prepare("update jwords set c1=:c1,c2=:c2,c3=:...
("QSQLITE") self.DB.setDatabaseName(dbFilename) if self.DB.open(): self.__openTable() else: QMessageBox.warning(self, "错误", "打开数据库失败") @pyqtSlot() def on_actSubmit_triggered(self): res = self.tabModel.submitAll() if(res == False): QMessageBox.inf...
This may cause problems when using QSqlTableModel because Qt's item views fetch data as needed (with QSqlQuery::fetchMore() in the case of QSqlTableModel). You can find information about SQLite on http://www.sqlite.org. How to Build the QSQLITE Plugin SQLite version 3 is included as ...
This is due to SQLite associating the type of a value with the value itself rather than with the column it is stored in. A consequence of this is that the type returned by QSqlField::type() only indicates the field's recommended type. No assumption of the actual type should be made ...
Qt天生内置了sqlite数据库,只需要发布的时候带上插件就行(可以看到插件动态库文件比其他几种都要大,那是因为直接将数据库的源码都编译进去了,而其他只编译了中间通信交互的插件源码),其他数据库要么还要带上动态库,要么还需要创建数据源; 速度上,绝对无与伦比的出类拔萃,同样的数据库结构(表结构、索引等完全一致...