Question

我有aitisi（id，name1，surname1，father1，birthdate1，name2，surname2，father2，birthdate2 ...到5，费用，开始，到期，计划，地址，电话，城市，邮编）我想要将surnameX，nameX，fatherX，birthdateX（X = 1到5）列复制到新的表成员（id，tid，name，surname，father，birthdate），其中tid是table1.id的查找键。

我尝试使用MySQL，但没有把它弄好，所以我终于用PHP做了id：

$query_aitisi = "SELECT * FROM aitisi order by id asc";
$aitisi = mysql_query($query_aitisi, $connection) or die(mysql_error());
$row_aitisi = mysql_fetch_assoc($aitisi);
$totalRows_aitisi = mysql_num_rows($aitisi);

do {
  for($i=1; $i<=5; $i++){
    if ($row_aitisi['on_te'.$i]<>'') { 
    $query_copy = "insert into members (symbid, name, surname, father, birthdate) 
    values ('".$row_aitisi[id]."','".$row_aitisi['surname'.$i]."','".$row_aitisi['name'.$i]."','".$row_aitisi['father'.$i]."','".$row_aitisi['birthdate'.$i]."')";
$copy = mysql_query($query_copy, $connection) or die(mysql_error());
    }
  }
} while ($row_aitisi = mysql_fetch_assoc($aitisi));

但是，我真的很想知道正确使用“create table as select”语句以备将来使用。任何人？谢谢！

Answer 1

以下查询应该可以正常工作

create table members (symbid, surname, name, father, birthdate)
    (select id, surname1, name1, father1, birthdate1 from aitisi where on_te1 != ''
    union all
    select id, surname2, name2, father2, birthdate2 from aitisi where on_te2 != ''
    union all
    select id, surname3, name3, father3, birthdate3 from aitisi where on_te3 != ''
    union all
    select id, surname4, name4, father4, birthdate4 from aitisi where on_te4 != ''
    union all
    select id, surname5, name5, father5, birthdate5 from aitisi where on_te5 != '')

使用带有select的create table在表之间复制数据

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