本文介绍了数据不保存在数据库中的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
亲爱的_Damian S_先生，你给我发了解决方案。（你没有将外键idYear插入到表slamonth。将你的记录插入slaYear后，你需要检索ID字段以传递给slaMonth表）。但是我们修改和如何，我已经在我的表slamonth和slareport中应用foreigen键。你能纠正我的问题。请帮助我
asp.net ....
Dear _Damian S_ sir you posted me solution that .(You are not inserting the foreign key idYear into table slamonth. After inserting your record into slaYear, you need to retrieve the ID field to pass to the slaMonth table).But where we modifie and how, i am already apply foreigen key in my both table slamonth and slareport .can you correct my problem.Please help me
asp.net....
protected void btn_save(object sender, EventArgs e)
{
string path = FileUpload1.PostedFile.FileName;
string ext = Path.GetExtension(path);
string contenttype = string.Empty;
if (!FileUpload1.HasFile)
{
ClientScript.RegisterStartupScript(Page.GetType(), "validation", "<script language="'javascript'">alert('Please select a file')</script>"); //if file uploader has no file selected
}
else if (FileUpload1.HasFile)
{
try
{
switch (ext)
{
case ".csv":
contenttype = "application/vnd.ms-excel";
break;
}
string YEAR = ddlyear.SelectedItem.ToString();
string MONTH = ddlmonth.SelectedItem.ToString();
MySqlConnection exclecon = new MySqlConnection("Server=Localhost;DataBase=password1;user=root;password=nectar");
exclecon.Open();
MySqlCommand cmdYear = new MySqlCommand("INSERT INTO slayear (YEAR) VALUES(@YEAR)", exclecon);
cmdYear.Parameters.AddWithValue("@YEAR", YEAR);
MySqlCommand cmdMonth = new MySqlCommand("INSERT INTO slamonth (MONTH,contenttype) VALUES(@MONTH,@contenttype)", exclecon);
cmdMonth.Parameters.AddWithValue("@MONTH", MONTH);
cmdMonth.Parameters.Add("@contenttype", MySqlDbType.VarChar).Value = contenttype;
string uploadQry = "LOAD DATA LOCAL INFILE '" + path + "' INTO TABLE slareport FIELDS TERMINATED BY ',' LINES TERMINATED BY '//n' IGNORE 1 LINES ";
MySqlCommand myCUpload = new MySqlCommand(uploadQry, exclecon);
cmdYear.ExecuteNonQuery();
cmdMonth.ExecuteNonQuery();
myCUpload.ExecuteNonQuery();
ClientScript.RegisterStartupScript(Page.GetType(), "validation", "<script language="'javascript'">alert('File uploaded Successfully ')</script>");
exclecon.Close();
}
catch (Exception ex)
{
Label4.Text = "Error: " + ex.Message.ToString();
}
}
}
}
} Mysql表............ 。
Mysql table.............
SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0;
SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0;
SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL,ALLOW_INVALID_DATES';
CREATE SCHEMA IF NOT EXISTS `password1` DEFAULT CHARACTER SET latin1 ;
USE `password1` ;
-- -----------------------------------------------------
-- Table `password1`.`slayear`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `password1`.`slayear` (
`idyear` INT(25) NOT NULL AUTO_INCREMENT ,
`YEAR` VARCHAR(45) NULL DEFAULT NULL ,
PRIMARY KEY (`idyear`) )
ENGINE = InnoDB
AUTO_INCREMENT = 3
DEFAULT CHARACTER SET = latin1;
-- -----------------------------------------------------
-- Table `password1`.`slamonth`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `password1`.`slamonth` (
`idmonth` INT(25) NOT NULL AUTO_INCREMENT ,
`idyear` INT(25) NOT NULL ,
`MONTH` VARCHAR(45) NOT NULL ,
`contenttype` VARCHAR(45) NOT NULL ,
PRIMARY KEY (`idmonth`) ,
INDEX `F_K_idx` (`idyear` ASC) ,
CONSTRAINT `F_K`
FOREIGN KEY (`idyear` )
REFERENCES `password1`.`slayear` (`idyear` )
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB
DEFAULT CHARACTER SET = latin1;
-- -----------------------------------------------------
-- Table `password1`.`slareport`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `password1`.`slareport` (
`FromSLANon_ComplianceReportMonthsParameter` VARCHAR(150) NULL DEFAULT NULL ,
`Target` VARCHAR(45) NULL DEFAULT NULL ,
`Unit` VARCHAR(45) NULL DEFAULT NULL ,
`OM` VARCHAR(45) NULL DEFAULT NULL ,
`Finance` VARCHAR(45) NULL DEFAULT NULL ,
`InbndMRO` VARCHAR(45) NULL DEFAULT NULL ,
`InbndRM` VARCHAR(45) NULL DEFAULT NULL ,
`Maximo` VARCHAR(45) NULL DEFAULT NULL ,
`Payroll` VARCHAR(45) NULL DEFAULT NULL ,
`HILAllied` VARCHAR(45) NULL DEFAULT NULL ,
`Hardware` VARCHAR(45) NULL DEFAULT NULL ,
`Network` VARCHAR(45) NULL DEFAULT NULL ,
`Software` VARCHAR(45) NULL DEFAULT NULL ,
`DBA` VARCHAR(45) NULL DEFAULT NULL ,
`OPM` VARCHAR(45) NULL DEFAULT NULL ,
`idmonth` INT(25) NULL DEFAULT NULL ,
`id` INT(25) NOT NULL AUTO_INCREMENT ,
PRIMARY KEY (`id`) ,
INDEX `F_K!_idx` (`idmonth` ASC) ,
CONSTRAINT `F_K1`
FOREIGN KEY (`idmonth` )
REFERENCES `password1`.`slamonth` (`idmonth` )
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB
DEFAULT CHARACTER SET = latin1;
USE `password1` ;
SET SQL_MODE=@OLD_SQL_MODE;
SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;
SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS;请为我提供解决方案....
please provide solution to me....
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