String sql = "delete from userinfo where username=?"; return super.executeSql(sql, username); } public int deleteUser(int userno){ String sql = "delete from userinfo where userno=?"; return ...
SQL 指令 SELECT DISTINCT WHERE AND OR IN BETWEEN LIKE ORDER BY 函数 COUNT GROUP BY HAVING ALIAS 表格链接 外部链接 CONCATENATE SUBSTRING TRIM 表格处理 CREATE TABLE CONSTRAINT NOT NULL UNIQUE CHECK 主键...
/*sql="select*from ta,tb where id like'%"+search+"%'"; sql=sql+"or title like'%"+search+"%'"; sql=sql+"or time like'%"+search+"%'"; sql=sql+"or con like'%"+search+"%'"; sql=sql+"order by id";*/ ...
sql="select * from biao where name like '%"&request("keyword")&"%' or id like '%"&request("keyword")&"%' or content like '%"&request("keyword")&"%'" else response.redirect("index.asp") end if set ...
string sql="select * from userinfo where UName='"+name.Text.Trim()+"' and PWD='"+password.Text.Trim()+"'"; cmd.CommandText=sql; if (null!=cmd.ExecuteScalar()) { //隐藏登录窗口 ...
if QueryData(Q, 'SELECT * FROM tblMotorphoto a INNER JOIN tblMotorPhotoMaster b ON a.acc_id_only = b.acc_id_only WHERE (b.PicturePath7 IS NULL) order by b.acc_id_only desc ', 1) then if Q....
string sql = "select * from type where type='"+textName.Text.Trim()+"'"; OleDbCommand cmd = new OleDbCommand(sql,oleConnection1); if (null!=cmd.ExecuteScalar()) MessageBox.Show("类型...
SQL指令 2 SELECT 2 DISTINCT 3 WHERE 4 AND OR 5 IN 5 BETWEEN 6 LIKE 7 ORDER BY 8 函数 10 COUNT 11 GROUP BY 12 HAVING 13 ALIAS 13 表格链接 15 外部链接 16 CONCATENATE 17 SUBSTRING 18 TRIM 19 表格处理 21 ...
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String sql = "delete from userinfo where username=?"; return super.executeSql(sql, username); } public int deleteUser(int userno){ String sql = "delete from userinfo where userno=?"; return ...
DELETE FROM SELLMAIL WHERE SMKEY = :B1 当前正执行SQL jdbcUrl=jdbc:oracle:thin:@193.0.10.110:1521:CENTER username=DBUSRDAT password=**** count=1 数据库连接 not sql runing 当前未执行SQL jdbcUrl=jdbc:...
string Sql = "and|or|exec|insert|select|delete|update|count|char|truncate|declare|drop|create"; //把所有敏感字符串过滤 string[] sql_c = Sql.Split('|'); if (Request.QueryString != null) { ...
SQL 指令 SELECT DISTINCT WHERE AND OR IN BETWEEN LIKE ORDER BY 函数 COUNT GROUP BY HAVING ALIAS 表格链接 外部链接 CONCATENATE SUBSTRING TRIM 表格处理 CREATE TABLE CONSTRAINT NOT NULL UNIQUE CHECK 主键...
is null:是空。(NULL表示不包含值。与空格、0是不同的。) 如:SELECT prod_name,prod_price FROM Products WHERE prod_price IS NULL; 七、高级检索(逻辑运算符): 通常我们需要根据多个条件检索数据。可以...
SQL = SQL & Me.ANewPosition & "' where SID='" & Me.AID & "'" TransactSQL (SQL) MsgBox "已经添加调动信息!", vbOKOnly + vbExclamation, "添加结果!" SQL = "select * from AlterationInfo order by ID" ...
string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString() 4.删除表格记录警告 private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e) { switch(e.Item....
if(descri.trim().equals(null)){ //do nothing } else{ count++; descri=descri+"罚款一元"; interFace.edit("insert into dirty_info values('"+ count+"','"+s+"','"+descri+"') "); ...
/*sql="select*from ta,tb where id like'%"+search+"%'"; sql=sql+"or title like'%"+search+"%'"; sql=sql+"or time like'%"+search+"%'"; sql=sql+"or con like'%"+search+"%'"; sql=sql+"order by id";*/ ...
其实还有更简单的方法,而且是更好的方法,使用合理描述参数和SQL语句返回值的接口(比如IUserOperation.class),这样现在就可以至此那个更简单,更安全的代码,没有容易发生的字符串文字和转换的错误.下面是详细...
sql="select * from biao where name like '%"&request("keyword")&"%' or id like '%"&request("keyword")&"%' or content like '%"&request("keyword")&"%'" else response.redirect("index.asp") end if set ...
LINQ to SQL语句(1)之Where 2 Where操作 2 1.简单形式: 2 2.关系条件形式: 2 3.First()形式: 3 LINQ to SQL语句(2)之Select/Distinct 3 1.简单用法: 4 2.匿名类型 形式: 4 3.条件形式: 5 4.指定类 型形式: 6 ...
string sql="select * from userinfo where UName='"+name.Text.Trim()+"' and PWD='"+password.Text.Trim()+"'"; cmd.CommandText=sql; if (null!=cmd.ExecuteScalar()) { //隐藏登录窗口 ...
string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString() 4.删除表格记录警告 private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e) { switch(e.Item.ItemType) {...
string selSql = "select count(*) from tb_bookBorrow where readerBarCode='" + readerBarCode + "' and isReturn ='0'"; int alreadyNum = dataOperate.seleSQL(selSql); //获取图书已借数 Label6.Text = ...
String sql="select * from users where uid="; if(uid.equals("")) { JOptionPane.showMessageDialog(null,"请输入用户编号"); return; } if(btn==du.findbtn) { eid=Integer.parseInt(uid); ...
"is null").setWhereStr("and", "date", ">=", new Date()); utils.setOrderByStr("id", "desc").setOrderByStr("name", "asc"); System.out.println(utils.buildSelectSQL()); System.out.println(utils....
if QueryData(Q, 'SELECT * FROM tblMotorphoto a INNER JOIN tblMotorPhotoMaster b ON a.acc_id_only = b.acc_id_only WHERE (b.PicturePath7 IS NULL) order by b.acc_id_only desc ', 1) then if Q....
string sql = "select * from type where type='"+textName.Text.Trim()+"'"; OleDbCommand cmd = new OleDbCommand(sql,oleConnection1); if (null!=cmd.ExecuteScalar()) MessageBox.Show("类型...
SQL指令 2 SELECT 2 DISTINCT 3 WHERE 4 AND OR 5 IN 5 BETWEEN 6 LIKE 7 ORDER BY 8 函数 10 COUNT 11 GROUP BY 12 HAVING 13 ALIAS 13 表格链接 15 外部链接 16 CONCATENATE 17 SUBSTRING 18 TRIM 19 表格处理 21 ...