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Below are practical examples compiled from projects for learning and reference purposes
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File name: ClassBLL.cs
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15 public void ChuanBi3Table(string MaHK)
16 {
17 //Table 1
18 string sql1 = " select MaSV,'sotinchi'=sum(SoTC) " +
19 " from KetQua kq,HocPhan hp,NhomHocPhan nhp,KeHoachGiangDay khgd " +
20 " where kq.MaNhomHP=nhp.MaNhomHP and nhp.MaHP=hp.MaHP and khgd.MaKHGD=nhp.MaKHGD and MaHK='" + MaHK + "' " +
21 " group by MaSV ";
22 DataTable dt1 = da.GetTable(sql1);
23 for (int i = 0; i < dt1.Rows.Count; i++)
24 {
25 string sql_1 = "Insert into Loptc values('" + dt1.Rows[i][0] + "'," + dt1.Rows[i][1] + ")";
26 da.ExcuteNonQuery(sql_1);
27 }
28 //Table 2
29 string sql2 = "select MaSV,'cuoiky'=sum(DiemTk10*SoTC) " +
30 " from KetQua kq,NhomHocPhan nhp,HocPhan hp,KeHoachGiangDay khdt " +
31 " where kq.MaNhomHP=nhp.MaNhomHP and nhp.MaHP=hp.MaHP and khdt.MaKHGD=nhp.MaKHGD and MaHK='" + MaHK + "' " +
32 " group by MaSV ";
33 DataTable dt2 = da.GetTable(sql2);
34 for (int i = 0; i < dt2.Rows.Count; i++)
35 {
36 string sql_2 = "Insert into Lopdiem10 values('" + dt2.Rows[i][0] + "'," + dt2.Rows[i][1] + ")";
37 da.ExcuteNonQuery(sql_2);
38 }
39 //Table 3
40 string sql3 = " select Lopdiem10.MaSV,'TrungBinhCuoiKyHe10'=cuoiky/sotinchi " +
41 " from Lopdiem10 left join Loptc on Loptc.MaSV=Lopdiem10.MaSV";
42 DataTable dt3 = da.GetTable(sql3);
43 for (int i = 0; i < dt3.Rows.Count; i++)
44 {
45 string sql_3 = "Insert into DTB values('" + dt3.Rows[i][0] + "'," + dt3.Rows[i][1] + ")";
46 da.ExcuteNonQuery(sql_3);
47 }
48 }
File name: ClassBLL.cs
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49 public void ChuanBi3Table()
50 {
51 //Table 1
52 string sql1 = " select MaSV,'sotinchi'=sum(SoTC) " +
53 " from KetQua kq,HocPhan hp,NhomHocPhan nhp,KeHoachGiangDay khgd " +
54 " where kq.MaNhomHP=nhp.MaNhomHP and nhp.MaHP=hp.MaHP and khgd.MaKHGD=nhp.MaKHGD " +
55 " group by MaSV ";
56 DataTable dt1 = da.GetTable(sql1);
57 for (int i = 0; i < dt1.Rows.Count; i++)
58 {
59 string sql_1 = "Insert into Loptc values('" + dt1.Rows[i][0] + "'," + dt1.Rows[i][1] + ")";
60 da.ExcuteNonQuery(sql_1);
61 }
62 //Table 2
63 string sql2 = "select MaSV,'cuoiky'=sum(DiemTk10*SoTC) " +
64 " from KetQua kq,NhomHocPhan nhp,HocPhan hp,KeHoachGiangDay khdt " +
65 " where kq.MaNhomHP=nhp.MaNhomHP and nhp.MaHP=hp.MaHP and khdt.MaKHGD=nhp.MaKHGD " +
66 " group by MaSV ";
67 DataTable dt2 = da.GetTable(sql2);
68 for (int i = 0; i < dt2.Rows.Count; i++)
69 {
70 string sql_2 = "Insert into Lopdiem10 values('" + dt2.Rows[i][0] + "'," + dt2.Rows[i][1] + ")";
71 da.ExcuteNonQuery(sql_2);
72 }
73 //Table 3
74 string sql3 = " select Lopdiem10.MaSV,'TrungBinhCuoiKyHe10'=cuoiky/sotinchi " +
75 " from Lopdiem10 left join Loptc on Loptc.MaSV=Lopdiem10.MaSV";
76 DataTable dt3 = da.GetTable(sql3);
77 for (int i = 0; i < dt3.Rows.Count; i++)
78 {
79 string sql_3 = "Insert into DTB values('" + dt3.Rows[i][0] + "'," + dt3.Rows[i][1] + ")";
80 da.ExcuteNonQuery(sql_3);
81 }
82 }
File name: ClassBLL.cs
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302 public void Insert(string table,string sql)
303 {
304 sql = "insert into "+table+" values("+sql+")";
305 da.ExcuteNonQuery(sql);
306 }
File name: ClassBLL.cs
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307 public void Update(string table, string sql)
308 {
309 sql = "update "+table+" set "+sql+"";
310 da.ExcuteNonQuery(sql);
311 }
File name: ClassBLL.cs
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312 public void Delete(string table, string sql)
313 {
314 sql = "delete from "+table+" where "+sql+"";
315 da.ExcuteNonQuery(sql);
316 }
File name: ClassDAL.cs
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12 public SqlConnection GetConnect()
13 {
14 return new SqlConnection("server=TY-PC;User id=sa;password=04091990;database=CNPM_1");
15 }
File name: ClassDAL.cs
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25 public void ExcuteNonQuery(string sql)
26 {
27 SqlConnection con = GetConnect();
28 con.Open();
29 SqlCommand cmd = new SqlCommand(sql, con);
30 cmd.ExecuteNonQuery();
31 cmd.Dispose();
32 con.Close();
33 }
File name: crBaoCao.cs
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24 public override string ResourceName {
25 get {
26 return "crBaoCao.rpt";
27 }
28 set {
29 // Do nothing
30 }
31 }
File name: crBaoCao.cs
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33 public override bool NewGenerator {
34 get {
35 return true;
36 }
37 set {
38 // Do nothing
39 }
40 }
File name: crBaoCao.cs
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42 public override string FullResourceName {
43 get {
44 return "QuanLyDiem.crBaoCao.rpt";
45 }
46 set {
47 // Do nothing
48 }
49 }
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