/// <summary>
/// 清空第一次导入数据库数据
/// </summary>
/// <returns></returns>
public static bool ClearExcel()
{
bool clearTabTeachers, clearTabOtherTeachers, clearTabCalendar, clearTabAllCourses;//记录删除成果
clearTabTeachers = ConnHelper.ExecuteNoneQueryOperation("truncate table TabAllCourses");
clearTabOtherTeachers = ConnHelper.ExecuteNoneQueryOperation("truncate table TabTeachers");
clearTabCalendar = ConnHelper.ExecuteNoneQueryOperation("truncate table TabCalendar");
clearTabAllCourses = ConnHelper.ExecuteNoneQueryOperation("truncate table TabOtherTeachers");
ConnHelper.ExecuteNoneQueryOperation("delete from TabAllCourses");//可找回但速度慢
return(clearTabTeachers && clearTabOtherTeachers && clearTabCalendar && clearTabAllCourses);
}
public static bool UpdateTabTeachers(string TableName, string UserPWD, string UserID)
{
string strSQL = BuildSQLUpdateString(TableName, UserPWD, UserID);
return(ConnHelper.ExecuteNoneQueryOperation(strSQL));
}
/// <summary>
/// 删除表内的数据，有一个约束条件
/// </summary>
/// <param name="v1">表名</param>
/// <param name="v2">约束字段</param>
/// <param name="v3">约束值</param>
public static bool DeleteRows(string v1, string v2, string v3)
{
string strSQL = SQLFactory.BuildSQLDeleteString(v1, v2, v3);
return(ConnHelper.ExecuteNoneQueryOperation(strSQL));
}
/// <summary>
/// 发布通知
/// </summary>
/// <param name="text">数据</param>
/// <param name="v2">权限</param>
public static bool InsertMsgRow(string text, string v2)
{
string strSQL = "insert into TabMessage(message,role) values('" + text + "','" + v2 + "')";
return(ConnHelper.ExecuteNoneQueryOperation(strSQL));
}
/// <summary>
/// 更新数据表
/// 更新一个字段，有一个条件
/// </summary>
/// <param name="v1">表名</param>
/// <param name="v2">更新的字段</param>
/// <param name="v3">更新后的值</param>
/// <param name="v4">约束名1</param>
/// <param name="v5">约束名2</param>
/// <param name="v6">约束名3</param>
/// <param name="v7">约束名4</param>
/// <param name="v8">约束名5</param>
/// <param name="c4">约束值1</param>
/// <param name="c5">约束值2</param>
/// <param name="c6">约束值3</param>
/// <param name="c7">约束值4</param>
/// <param name="c8">约束值5</param>
public static bool UpdateRows(string v1, string v2, string v3, string v4, string v5, string v6, string v7, string v8, string c4, string c5, string c6, string c7, string c8)
{
string strSQL = "update " + v1 + " set " + v2 + "='" + v3 + "' where " + v4 + "='" + c4 + "' and " + v5 + "='" + c5 + "' and " + v6 + "='" + c6 + "' and " + v7 + "='" + c7 + "' and " + v8 + "='" + c8 + "'";
return(ConnHelper.ExecuteNoneQueryOperation(strSQL));
}
public static bool DeleteTab(string TName)
{
string strSQL = SQLFactory.BuildSQLDeleteString(TName);
return(ConnHelper.ExecuteNoneQueryOperation(strSQL));
}
/// <summary>
/// 更新数据表
/// 更新一个字段，有一个条件
/// </summary>
/// <param name="v1">表名</param>
/// <param name="v2">更新的字段</param>
/// <param name="v3">更新后的值</param>
/// <param name="v4">约束名</param>
/// <param name="v5">约束值</param>
/// <returns></returns>
public static bool UpdateRows(string v1, string v2, string v3, string v4, string v5)
{
string strSQL = SQLFactory.BuildSQLUpdate(v1, v2, v3, v4, v5);
return(ConnHelper.ExecuteNoneQueryOperation(strSQL));
}
/// <summary>
/// 执行插入命令
/// </summary>
/// <param name="strSql">insert into 语句</param>
/// <returns></returns>
public static bool InsertData(string strSql)
{
return(ConnHelper.ExecuteNoneQueryOperation(strSql));
}
public static bool DeleteTabTeachers(string tableName)
{
string strSql = "DELETE FROM " + tableName + " WHERE 1=1";
return(ConnHelper.ExecuteNoneQueryOperation(strSql));
}
