using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Collections; using System.Data; using System.Data.SqlClient; using System.Data.Common; namespace SqlServerDAL { public class SqlHelper { sta
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using System.Data;
using System.Data.SqlClient;
using System.Data.Common;
namespace SqlServerDAL
{
public class SqlHelper
{
static string _SqlConnectionString;
public static string SqlConnectionString
{
get
{
return _SqlConnectionString;
}
set
{
_SqlConnectionString = value;
}
}
///
/// 设置参数内容
///
/// 名称
/// 数据类型
/// 长度大小
/// 值
/// 类型
///
public static SqlParameter SetDataParameter(string ParamName, SqlDbType DbType, Int32 Size, object paramevalue, ParameterDirection Direction)
{
SqlParameter param = new SqlParameter();
param.SqlDbType = DbType;
param.ParameterName = ParamName;
if (Size > 0)
{
param.Size = Size;
}
if (paramevalue.ToString() != "" && paramevalue != null && Direction != ParameterDirection.Output)
{
param.Value = paramevalue;
}
param.Direction = Direction;
return param;
}
///
/// 设置参数内容
///
/// 名称
/// 数据类型
/// 类型
///
public static SqlParameter SetDataParameter(string ParamName, SqlDbType DbType, ParameterDirection Direction)
{
SqlParameter param = new SqlParameter();
param.SqlDbType = DbType;
param.ParameterName = ParamName;
param.Direction = Direction;
return param;
}
#region 私有办法
///
/// 将SqlParameter参数数组(参数值)分派给DbCommand号令.
/// 这个办法将给任何一个参数分派DBNull.Value;
/// 该操纵将阻拦默认值的应用.
///
/// 号令名
/// SqlParameters数组
private static void AttachParameters(SqlCommand command, SqlParameter[] commandParameters)
{
if (command == null) throw new ArgumentNullException("command");
if (commandParameters != null)
{
foreach (SqlParameter p in commandParameters)
{
if (p != null)
{
// 搜检未分派值的输出参数,将其分派以DBNull.Value.
if ((p.Direction == ParameterDirection.InputOutput || p.Direction == ParameterDirection.Input) &&
(p.Value == null))
{
p.Value = DBNull.Value;
}
command.Parameters.Add(p);
}
}
}
//应用完成后清除原所有参数值
// ClearIDataParameter();
}
///
/// 预处理惩罚用户供给的号令,数据库连接/事务/号令类型/参数
///
/// 一个有效的事务或者是null值
/// 号令类型 (存储过程,号令文本, 其它.)
/// 存储过程名或都SQL号令文本
/// 和号令相接洽关系的SqlParameter参数数组,若是没有参数为""null""
///
private static void PrepareCommand(SqlConnection Connection, SqlCommand Command, SqlTransaction transaction, CommandType commandType, string commandText, SqlParameter[] commandParameters, out bool mustCloseConnection)
{
try
{
if (Command == null) throw new ArgumentNullException("command");
if (commandText == null || commandText.Length == 0) throw new ArgumentNullException("commandText");
if (Connection.State != ConnectionState.Open)
{
mustCloseConnection = true;
Connection.Open();
}
else
{
mustCloseConnection = false;
}
// 给号令分派一个数据库连接.
Command.Connection = Connection;
// 设置号令文本(存储过程名或SQL语句)
Command.CommandText = commandText;
// 分派事务
if (transaction != null)
{
if (transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
Command.Transaction = transaction;
}
// 设置号令类型.
Command.CommandType = commandType;
// 分派号令参数
if (commandParameters != null)
{
//SqlParameter[] dpitem =
AttachParameters(Command, commandParameters);
}
}
catch
{
mustCloseConnection = false;
}
}
#endregion
#region uteDataSet 数据表
///
/// 履行指定命据库连接字符串的号令,返回DataSet.
///
/// 存储过程名称或SQL语句
///
public static DataSet uteDataSet(string commandText)
{
return uteDataSet((SqlTransaction)null, commandText, CommandType.Text, (SqlParameter[])null);
}
///
/// 履行指定命据库连接字符串的号令,返回DataSet.
///
/// 存储过程名称或SQL语句
/// 号令类型 (存储过程,号令文本或其它)
/// 参数
///
public static DataSet uteDataSet(SqlTransaction transaction, string commandText, CommandType commandType, params SqlParameter[] commandParameters)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{
connection.Open();
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, transaction, commandType, commandText, commandParameters, out mustCloseConnection);
try
{
SqlDataAdapter sdap = new SqlDataAdapter();
sdap.SelectCommand = Command;
DataSet ds = new DataSet();
sdap.Fill(ds);
Command.Parameters.Clear();//清空
Command.Dispose();
if (mustCloseConnection)
connection.Close();
return ds;
}
catch (Exception ex)
{
Command.Parameters.Clear();//清空
Command.Dispose();
if (mustCloseConnection)
connection.Close();
return new DataSet();
}
}
}
///
/// 履行指定命据库连接字符串的号令,返回DataSet.
///
/// 存储过程名称或SQL语句
/// 号令类型 (存储过程,号令文本或其它)
///
public static DataSet uteDataSet(string commandText, CommandType commandTytpe)
{
return uteDataSet((SqlTransaction)null, commandText, commandTytpe, (SqlParameter[])null);
}
///
/// 履行指定命据库连接字符串的号令,返回DataSet.
///
/// 输出输出参数成果凑集,例:{Name,Value}
/// 存储过程名称或SQL语句
/// 号令类型 (存储过程,号令文本或其它)
/// 参数
///
public static DataSet uteDataSet(ref Hashtable outParameters, string commandText, CommandType commandType, params SqlParameter[] commandParameters)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{
connection.Open();
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection);
try
{
SqlDataAdapter sdap = new SqlDataAdapter();
sdap.SelectCommand = Command;
DataSet ds = new DataSet();
sdap.Fill(ds);
if (outParameters != null)
{
for (int i = 0; i
{
if (Command.Parameters[i].Direction == ParameterDirection.Output)
{
if (!outParameters.Contains(Command.Parameters[i].ParameterName))
{
outParameters.Add(Command.Parameters[i].ParameterName, Command.Parameters[i].Value.ToString());
}
}
}
}
Command.Parameters.Clear();//清空
Command.Dispose();
if (mustCloseConnection)
connection.Close();
return ds;
}
catch (Exception ex)
{
Command.Parameters.Clear();//清空
Command.Dispose();
if (mustCloseConnection)
connection.Close();
return new DataSet();
}
}
}
///
/// 履行指定命据库连接字符串的号令,返回DataSet.
///
/// 输出输出参数成果凑集,例:{Name,Value}
/// 存储过程
/// 参数
///
public static DataSet uteDataSet(ref Hashtable outParameters, string SqlSPro, params SqlParameter[] commandParameters)
{
return uteDataSet(ref outParameters, SqlSPro, CommandType.StoredProcedure, commandParameters);
}
///
/// 履行指定命据库连接字符串的号令,返回DataSet.
///
/// 输出输出参数成果凑集,例:{Name,Value}
/// 存储过程
/// 参数
///
public static DataSet uteDataSet(string SqlSPro, params SqlParameter[] commandParameters)
{
Hashtable outParameters = null;
return uteDataSet(ref outParameters, SqlSPro, CommandType.StoredProcedure, commandParameters);
}
#endregion
#region uteScalar 返回成果集中的第一行第一列
///
/// 返回一条数据
///
///
///
///
///
///
public static object uteScalar(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{
connection.Open();
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
try
{
PrepareCommand(connection, Command, transaction, commandType, commandText, commandParameters, out mustCloseConnection);
object rvalue = Command.uteScalar();
Command.Parameters.Clear();//清空
Command.Dispose();
if (mustCloseConnection)
connection.Close();
return rvalue;
}
catch (Exception ex)
{
Command.Parameters.Clear();//清空
if (mustCloseConnection)
connection.Close();
return null;
}
}
}
///
/// 返回一条数据
///
///
///
///
public static object uteScalar(CommandType commandType, string commandText)
{
return uteScalar((SqlTransaction)null, commandType, commandText, (SqlParameter[])null);
}
///
/// 返回一条数据
///
///
///
///
public static object uteScalar(CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
return uteScalar((SqlTransaction)null, commandType, commandText, commandParameters);
}
///
/// 返回一条数据
///
///
///
///
///
public static object uteScalar(CommandType commandType, string commandText, SqlTransaction transaction)
{
return uteScalar(transaction, commandType, commandText, (SqlParameter[])null);
}
///
/// 返回一第数据
///
///
///
public static object uteScalar(string commandText)
{
return uteScalar(CommandType.Text, commandText, (SqlTransaction)null);
}
#endregion
#region uteDataReader 数据浏览器
public static DbDataReader uteDataReader(SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
if (connection == null) throw new ArgumentNullException("connection");
DbDataReader reader = null;
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
try
{
PrepareCommand(connection, Command, transaction, commandType, commandText, commandParameters, out mustCloseConnection);
reader = Command.uteReader(System.Data.CommandBehavior.CloseConnection);
//reader = Command.uteReader(System.Data.CommandBehavior.CloseConnection);
Command.Parameters.Clear();//清空
//Command.Dispose();
}
catch (Exception ex)
{
}
return reader;
}
public static DbDataReader uteDataReader(SqlTransaction transaction, CommandType commandType, string commandText)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
SqlConnection connection = null;
try
{
connection = new SqlConnection(SqlConnectionString);
connection.Open();
return uteDataReader(connection, transaction, commandType, commandText, (SqlParameter[])null);
}
catch
{
// If we fail to return the SqlDatReader, we need to close the connection ourselves
if (connection != null) connection.Close();
throw;
}
}
public static DbDataReader uteDataReader(CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
SqlConnection connection = null;
try
{
connection = new SqlConnection(SqlConnectionString);
connection.Open();
return uteDataReader(connection, (SqlTransaction)null, commandType, commandText, commandParameters);
}
catch
{
// If we fail to return the SqlDatReader, we need to close the connection ourselves
if (connection != null) connection.Close();
throw;
}
}
public static DbDataReader uteDataReader(CommandType commandType, string commandText)
{
return uteDataReader(commandType, commandText, (SqlParameter[])null);
}
public static DbDataReader uteDataReader(string commandText)
{
return uteDataReader(CommandType.Text, commandText);
}
public static DbDataReader uteDataReader(SqlConnection connection, out List
{
DbDataReader reader = null;
outParameters = new List
try
{
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection);
reader = Command.uteReader(System.Data.CommandBehavior.CloseConnection);// (CommandBehavior.CloseConnection);
Command.Parameters.Clear();//清空
Command.Dispose();
}
catch (Exception ex)
{
}
return reader;
}
public static DbDataReader uteDataReader(out List
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
SqlConnection connection = null;
try
{
connection = new SqlConnection(SqlConnectionString);
connection.Open();
return uteDataReader(connection, out outParameters, SqlSPro, CommandType.StoredProcedure, commandParameters);
}
catch
{
// If we fail to return the SqlDatReader, we need to close the connection ourselves
if (connection != null) connection.Close();
throw;
}
}
#endregion
#region uteDataRow 返回成果集中第一行
///
/// 履行指定命据库连接字符串的号令,返回DataSet第一行.
///
/// 存储过程名称或SQL语句
/// 号令类型 (存储过程,号令文本或其它)
/// 参数
///
public static DataRow uteDataRow(SqlTransaction transaction, string commandText, CommandType commandType, params SqlParameter[] commandParameters)
{
try
{
DataRow row = null;
DataSet ds = uteDataSet(transaction, commandText, commandType, commandParameters);
if (ds.Tables[0].Rows.Count > 0)
{
row = (DataRow)ds.Tables[0].Rows[0];
}
ds.Dispose();
return row;
}
catch
{
return null;
}
}
public static DataRow uteDataRow(string commandText, CommandType commandType)
{
return uteDataRow((SqlTransaction)null, commandText, commandType, (SqlParameter[])null);
}
public static DataRow uteDataRow(string commandText, CommandType commandType, params SqlParameter[] commandParameters)
{
return uteDataRow((SqlTransaction)null, commandText, commandType, commandParameters);
}
public static DataRow uteDataRow(string commandText)
{
return uteDataRow((SqlTransaction)null, commandText,香港服务器, CommandType.Text, (SqlParameter[])null);
}
#endregion
#region uteNonQuery办法
public static int uteNonQuery(ref Hashtable OutPut, string commandText, params SqlParameter[] commandParameters)
{
if (_SqlConnectionString == null || _SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
using (SqlConnection connection = new SqlConnection(_SqlConnectionString))
{
connection.Open();
// 创建DbCommand号令,并进行预处理惩罚
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, (SqlTransaction)null, CommandType.StoredProcedure, commandText, commandParameters, out mustCloseConnection);
// 履行号令
int retval = Command.uteNonQuery();
for (int i = 0; i
{
if (Command.Parameters[i].Direction == ParameterDirection.Output)
{
if (!OutPut.Contains(Command.Parameters[i].ParameterName.ToString()))
{
OutPut.Add(Command.Parameters[i].ParameterName.ToString(), Command.Parameters[i].Value.ToString());
}
}
}
// 清除参数,以便再次应用.
Command.Parameters.Clear();
Command.Dispose();
return retval;
}
}
///
/// DataTable批量添加到数据库
///
/// 要写入的表名
/// DataTable表
public static void CopyutNonQuery(string TableName, DataTable dt)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{
connection.Open();
using (SqlTransaction Trans = connection.BeginTransaction())
{
using (SqlBulkCopy sqlBC = new SqlBulkCopy(connection, SqlBulkCopyOptions.FireTriggers, Trans))
{
try
{
//一次批量的插入的数据量
sqlBC.BatchSize = dt.Rows.Count;
//超时之前操纵完成所容许的秒数,若是超时则事务不会提交 ,数据将回滚,所有已复制的行都邑从目标表中移除
sqlBC.BulkCopyTimeout = 360;
//設定 NotifyAfter 属性,以便在每插入10000 条数据时,呼唤响应事务。
// sqlBC.NotifyAfter = 1000;
// sqlBC.SqlRowsCopied += new SqlRowsCopiedEventHandler(OnSqlRowsCopied);
//设置要批量写入的表
sqlBC.DestinationTableName = TableName;
//自定义的datatable和数据库的字段进行对应
//sqlBC.ColumnMappings.Add("id", "tel");
//sqlBC.ColumnMappings.Add("name", "neirong");
//for (int i = 0; i
//{
// sqlBC.ColumnMappings.Add(dtColum[i].ColumnName.ToString(), dtColum[i].ColumnName.ToString());
//}
//批量写入
sqlBC.WriteToServer(dt);
Trans.Commit();
}
catch
{
Trans.Rollback();
}
}
}
}
}
///
/// 履行指定命据库连接对象的号令
///
/// 号令类型(存储过程,号令文本或其它.)
/// T存储过程名称或SQL语句
/// SqlParamter参数数组
///
public static int uteNonQuery(CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{
connection.Open();
// 创建DbCommand号令,并进行预处理惩罚
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection);
// 履行号令
int retval = Command.uteNonQuery();
// 清除参数,以便再次应用.
Command.Parameters.Clear();
Command.Dispose();
return retval;
}
}
public static int uteNonQuery(SqlTransaction Transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand(); ;
PrepareCommand(Transaction.Connection, Command, Transaction, commandType, commandText, commandParameters, out mustCloseConnection);
try
{
// 履行号令
int retval = Command.uteNonQuery();
// 清除参数,以便再次应用.
Command.Parameters.Clear();
if (Transaction != null)
{
Transaction.Commit();
}
Command.Dispose();
if (mustCloseConnection)
{
Transaction.Connection.Close();
Transaction.Connection.Dispose();
}
return retval;
}
catch (Exception ex)
{
if (Transaction != null)
{
Transaction.Rollback();
}
Command.Dispose();
return 0;
}
}
public static int uteNonQuery(out int Scope_Identity, SqlTransaction Transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
Scope_Identity = 0;
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(Transaction.Connection, Command, Transaction, commandType, commandText, commandParameters, out mustCloseConnection);
try
{
// 履行号令
int retval = Command.uteNonQuery();
// 清除参数,以便再次应用.
Command.Parameters.Clear();
Command.CommandType = CommandType.Text;
Command.CommandText = "SELECT SCOPE_IDENTITY()";
Scope_Identity = int.Parse(Command.uteScalar().ToString());
Command.Dispose();
if (mustCloseConnection)
{
Transaction.Connection.Close();
Transaction.Connection.Dispose();
}
return retval;
}
catch (Exception ex)
{
Command.Dispose();
Transaction.Connection.Close();
Transaction.Connection.Dispose();
return 0;
}
}
///
/// 履行指定命据库连接对象的号令,并输出最后履行的成果编号
///
/// 输出最后履行成果
/// 号令类型(存储过程,号令文本或其它.)
/// T存储过程名称或SQL语句
/// SqlParamter参数数组
///
public static int uteNonQuery(out int Scope_Identity, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
Scope_Identity = 0;
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{
connection.Open();
// 创建DbCommand号令,并进行预处理惩罚
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection);
try
{
// 履行号令
int retval = Command.uteNonQuery();
// 清除参数,以便再次应用.
Command.Parameters.Clear();
Command.CommandType = CommandType.Text;
Command.CommandText = "SELECT SCOPE_IDENTITY()";
Scope_Identity = int.Parse(Command.uteScalar().ToString());
Command.Dispose();
return retval;
}
catch (Exception ex)
{
Command.Dispose();
return 0;
}
}
}
///
/// 履行指定命据库连接对象的号令
///
/// 一个有效的数据库连接对象
/// 号令类型(存储过程,号令文本或其它.)
/// 存储过程名称或SQL语句
///
public static int uteNonQuery(CommandType commandType, string CommandText)
{
if (CommandText == null || CommandText.Length == 0) throw new ArgumentNullException("commandText");
return uteNonQuery(commandType, CommandText, (SqlParameter[])null);
}
///
/// 履行指定命据库连接对象的号令,将对象数组的值赋给存储过程参数.
///
/// 一个有效的数据库连接对象
/// 存储过程名
/// 分派给存储过程输入参数的对象数组
///
public static int uteNonQuery(string spName,香港空间, params SqlParameter[] commandParameters)
{
if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");
// 若是有参数值
if ((commandParameters != null) && (commandParameters.Length > 0))
{
return uteNonQuery(CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return uteNonQuery(CommandType.StoredProcedure, spName);
}
}
///
/// 履行带事务的SQL语句
///
///
///
public static int uteNonQuery(string commandText)
{
if (commandText == null || commandText.Length == 0) throw new ArgumentNullException("commandText");
//SqlTransaction Transaction = BBDataProvider.Transaction;
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{
connection.Open();
SqlTransaction Transaction = connection.BeginTransaction();
return uteNonQuery(Transaction, CommandType.Text, commandText, (SqlParameter[])null);
}
}
///
/// 履行存储过程,返回Output成果
///
/// 存储过程名
/// 号令类型(存储过程)
/// SqlParamter参数数组
///
public static List
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{
connection.Open();
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, (SqlTransaction)null, CommandType.StoredProcedure, commandText, commandParameters, out mustCloseConnection);
try
{
Command.uteNonQuery();
}
catch { }
List
for (int i = 0; i
{
if (Command.Parameters[i].Direction == ParameterDirection.Output)
{
string[] parameteritem = { Command.Parameters[i].ParameterName.ToString(), Command.Parameters[i].Value.ToString() };
outParameters.Add(parameteritem);
}
}
Command.Parameters.Clear();//清空
Command.Dispose();
if (mustCloseConnection)
connection.Close();
return outParameters;
}
}
#endregion
}
}
,美国服务器

对于 SQL Server 数据库中已存在同名对象,需要采取以下步骤:确认对象类型(表、视图、存储过程)。如果对象为空,可使用 IF NOT EXISTS 跳过创建。如果对象有数据,使用不同名称或修改结构。使用 DROP 删除现有对象(谨慎操作,建议备份)。检查架构更改,确保没有引用删除或重命名的对象。

当 SQL Server 服务无法启动时,可采取以下步骤解决:检查错误日志以确定根本原因。确保服务帐户具有启动服务的权限。检查依赖项服务是否正在运行。禁用防病毒软件。修复 SQL Server 安装。如果修复不起作用,重新安装 SQL Server。

要查看 SQL Server 端口号:打开 SSMS,连接到服务器。在对象资源管理器中找到服务器名称,右键单击它,然后选择“属性”。在“连接”选项卡中,查看“TCP 端口”字段。

SQL Server 数据库文件通常存储在以下默认位置:Windows: C:\Program Files\Microsoft SQL Server\MSSQL\DATALinux: /var/opt/mssql/data可通过修改数据库文件路径设置来自定义数据库文件位置。

问题发现这次使用的是SqlServer数据库,之前并没有使用过,但是问题不大,我按照需求文档的步骤连接好SqlServer之后,启动SpringBoot项目,发现了一个报错,如下:刚开始我以为是SqlServer连接问题呢,于是便去查看数据库,发现数据库一切正常,我首先第一时间问了我的同事,他们是否有这样的问题,发现他们并没有,于是我便开始了我最拿手的环节,面向百度编程。开始解决具体报错信息是这样,于是我便开始了百度报错:ERRORc.a.d.p.DruidDataSource$CreateCo

SQL Server 英文安装可通过以下步骤更改为中文:下载相应语言包;停止 SQL Server 服务;安装语言包;更改实例语言;更改用户界面语言;重启应用程序。

有网友反馈,在win11上无法安装sqlserver这款软件,不知道是怎么回事,根据目前的测试来看,win11存在硬盘问题,部分接口硬盘无法安装这款软件。win11为啥不能安装sqlserver:答:win11不能安装sqlserver是硬盘的问题。1、据了解,win11存在对于硬盘的检测bug。2、这导致sqlserver无法在“三星m.2接口”硬盘上安装。3、因此,如果我们要安装的话,需要准备一块其他硬盘。4、然后将该硬盘安装到电脑里,如果没有额外插槽的话就要换掉之前的硬盘。5、安装完成后,

可以通过以下步骤查询 SQL Server 数据库日志:1. 打开 SQL Server Management Studio,连接到数据库服务器;2. 展开“管理”节点,导航到“SQL Server 日志”;3. 选择要查询的日志文件,右键单击并选择“查看日志文件”;4. 浏览日志记录。其他查询日志方法:使用 Transact-SQL 查询、PowerShell Cmdlet。


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