/// <summary>
/// 执行查询操作
/// </summary>
public void OrtherQuery()
{
SqlDb db = new SQLiteDb(_connString);
db.IsShowSqlToConsole = _isShowSqlToConsole;
var dbFactory = db.DbBuilder.DbFactory;
var dbOperator = dbFactory.GetDbParamOperator();
var dbParams = new List <IDbDataParameter>();
var sql = "select * from UserInfo where UserId=4";
var paramSql = string.Format("select * from UserInfo where UserId={0}UserId", dbOperator);
//自定义查询,返回单条数据(无参)
UserInfo data;
using (var dataReader = db.ExecuteReaderWithObjParam(sql, null))
{
data = db.DataReaderToEntity <UserInfo>(dataReader);
}
using (var dataReader = db.ExecuteReader(sql, null))
{
data = db.DataReaderToEntity <UserInfo>(dataReader);
}
//自定义查询,返回单条数据(有参)
using (var dataReader = db.ExecuteReaderWithObjParam(paramSql, new { UserId = 4 }))
{
data = db.DataReaderToEntity <UserInfo>(dataReader);
}
dbParams = new List <IDbDataParameter>();
dbParams.Add(dbFactory.GetDbParam("UserId", 4));
using (var dataReader = db.ExecuteReader(paramSql, dbParams))
{
data = db.DataReaderToEntity <UserInfo>(dataReader);
}
//自定义查询,返回多条数据(无参)
sql = "select * from UserInfo where UserId>2";
List <UserInfo> dataList;
using (var dataReader = db.ExecuteReaderWithObjParam(sql, null))
{
dataList = db.DataReaderToEntityList <UserInfo>(dataReader);
}
using (var dataReader = db.ExecuteReader(sql, null))
{
dataList = db.DataReaderToEntityList <UserInfo>(dataReader);
}
//自定义查询,返回多条数据(有参)
paramSql = string.Format("select * from UserInfo where UserId>{0}UserId", dbOperator);
using (var dataReader = db.ExecuteReaderWithObjParam(paramSql, new { UserId = 2 }))
{
dataList = db.DataReaderToEntityList <UserInfo>(dataReader);
}
dbParams = new List <IDbDataParameter>();
dbParams.Add(dbFactory.GetDbParam("UserId", 2));
using (var dataReader = db.ExecuteReader(paramSql, dbParams))
{
dataList = db.DataReaderToEntityList <UserInfo>(dataReader);
}
}
