Php 在mysql中选择一个值范围
除了MySql查询中的前3行外,我如何选择所有行Php 在mysql中选择一个值范围,php,mysql,Php,Mysql,除了MySql查询中的前3行外,我如何选择所有行 $query = mysql_query("SELECT * FROM comments WHERE approved = 1"); 是否需要以下内容: $query = mysql_query("SELECT * FROM comments WHERE approved = 1"); $rowCount = 0; while ($row = mysql_fetch_assoc($query)) { $rowCount = $row
$query = mysql_query("SELECT * FROM comments WHERE approved = 1");
是否需要以下内容:
$query = mysql_query("SELECT * FROM comments WHERE approved = 1");
$rowCount = 0;
while ($row = mysql_fetch_assoc($query)) {
$rowCount = $rowCount + 1;
// do stuff only if you have reached the third row.
if ($rowCount > 3){
// do stuff here
}
}
是否需要以下内容:
$query = mysql_query("SELECT * FROM comments WHERE approved = 1");
$rowCount = 0;
while ($row = mysql_fetch_assoc($query)) {
$rowCount = $rowCount + 1;
// do stuff only if you have reached the third row.
if ($rowCount > 3){
// do stuff here
}
}
要按列名查找第三个记录顺序,请使用
$query = mysql_query("SELECT * FROM comments
WHERE approved = 1
ORDER BY columnName
LIMIT 2, 1");
要查找除前3行以外的所有行,请使用限制2,行总数
如果您不知道行的总数,请使用非常大的数字来代替它
$query = mysql_query("SELECT * FROM comments
WHERE approved = 1
ORDER BY columnName
LIMIT 2, total_no_of_rows");
要按列名查找第三个记录顺序,请使用
$query = mysql_query("SELECT * FROM comments
WHERE approved = 1
ORDER BY columnName
LIMIT 2, 1");
要查找除前3行以外的所有行,请使用限制2,行总数
如果您不知道行的总数,请使用非常大的数字来代替它
$query = mysql_query("SELECT * FROM comments
WHERE approved = 1
ORDER BY columnName
LIMIT 2, total_no_of_rows");
根据什么标准你定义“第一”?不管我如何排序,我都希望它是工作。根据什么标准你定义“第一”?不管我如何排序,我都希望它是工作。可能的重复只是前2个。这只是前2个。