C#(.net)中的一次连接数据库执行多条sql语句
第一種方法:
???????? ?? string str="server=.;uid=sa;pwd=111111;database=text_db";//連接字符串
??????? SqlConnection SCON = null;//連接對(duì)象
??????? SqlCommand SCom=new SqlCommand();//命令對(duì)象
??????????? SCON=new SqlConnection(str);
??????????? SCON.Open();
??????? ??SCom.CommandText = "insert into cum(nm,age,sex,addr) values(‘”+name1+”’, ‘”+age1+”’, ‘”+sex1”’,’”+addr1+”’); insert into cum(nm,age,sex,addr) values(‘”+name1+”’, ‘”+age1+”’, ‘”+sex1”’,’”+addr1+”’)";
??????????? SCom.Connection = SCON;
??????????? SCom.CommandType = CommandType.Text;
??????????? int num = SCom.ExecuteNonQuery();
??????????? SCON.Close();
?????????? 注意:這種執(zhí)行我不推薦這也就是把多條sql語(yǔ)句寫(xiě)成了一條sql語(yǔ)句就行執(zhí)行(大家如果要一次連接想執(zhí)行多條sql語(yǔ)句那用下面的)
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第二種方法:
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?????? string str="server=.;uid=sa;pwd=111111;database=text_db";//連接字符串
??????? SqlConnection SCON;
??????? SqlCommand SCom1=new SqlCommand();//要執(zhí)行sql語(yǔ)句的第一個(gè)命令對(duì)象
???? ?? SqlCommand SCom2=new SqlCommand();//要執(zhí)行sql語(yǔ)句的第二個(gè)命令對(duì)象
??????????? SCON=new SqlConnection(str);
??????????? SCON.Open();
?????????? //第一條要執(zhí)行的sql語(yǔ)句
??????? ???SCom1.CommandText = "insert into cum(nm,age,sex,addr) values(@name,@age,@sex,@addr)";
??????????? SCom1.Parameters.Add("@name", SqlDbType.Text);
??????????? SCom1.Parameters.Add("@age", SqlDbType.Int);
??????????? SCom1.Parameters.Add("@sex", SqlDbType.Bit);
??????????? SCom1.Parameters.Add("@addr", SqlDbType.Text);
??????????? SCom1.Parameters["@name"].Value = name1;
??????????? SCom1.Parameters["@age"].Value = age1;
??????????? SCom1.Parameters["@sex"].Value = sex1;
??????????? SCom1.Parameters["@addr"].Value = addr1;
??????????? SCom1.Connection = SCON;
??????????? SCom1.CommandType = CommandType.Text;
??????????? int num = SCom1.ExecuteNonQuery();
???????? ?//第二條要招行的sql語(yǔ)句
??????????? SCom2.CommandText = "insert into cum(nm,age,sex,addr) values(@name,@age,@sex,@addr)";
??????????? SCom2.Parameters.Add("@name", SqlDbType.Text);
??????????? SCom2.Parameters.Add("@age", SqlDbType.Int);
??????????? SCom2.Parameters.Add("@sex", SqlDbType.Bit);
??????????? SCom2.Parameters.Add("@addr", SqlDbType.Text);
??????????? SCom2.Parameters["@name"].Value = name2;
??????????? SCom2.Parameters["@age"].Value = age2;
??????????? SCom2.Parameters["@sex"].Value = sex2;
??????????? SCom2.Parameters["@addr"].Value = addr2;
??????????? SCom2.Connection = SCON;
??????????? SCom2.CommandType = CommandType.Text;
??????????? int num = SCom2.ExecuteNonQuery();
SCON.Close();
?? 這種方法就是利用了一個(gè)SqlConnection對(duì)象進(jìn)行一次連接,在關(guān)閉前執(zhí)行多個(gè)SqlCommand命令對(duì)象,執(zhí)行在進(jìn)行關(guān)閉連接
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