mysql分表后组合查询
时间：2021-07-01 10:21:17
帮助过：33人阅读
//注册到月份表
$sql = "INSERT INTO tbl_view_".
date(‘Ym‘)."(ip,city,dateline) VALUES(‘127.0.0.1‘,‘CHINA‘,1562065253)"
;
$id = DB::query(
$sql);
//查询的时候按时间条件组合查询SQL
$start_date =
strtotime(‘2019-01-01 00:00:00‘
);
$end_date =
strtotime(‘2019-07-01 23:59:59‘
);
$month_begin =
date(‘Ym‘,
$start_date);
$month_end =
date(‘Ym‘,
$end_date);
$month_plus = 1
;
$month_next =
date(‘Ym‘,
strtotime("+{
$month_plus} months",
$start_date));
$UNION_SQL = "SELECT ip,city,dateline FROM tbl_view_{
$month_begin}"
;
while(
intval(
$month_next) <=
intval(
$month_end)){
$UNION_SQL .= " UNION ALL SELECT ip,city,dateline FROM tbl_view_{
$month_next}"
;
$month_plus += 1
;
$month_next =
date(‘Ym‘,
strtotime("+{
$month_plus} months",
$start_date));
}
$sql = "SELECT * FROM (
$UNION_SQL) t WHERE 1 AND dateline BETWEEN
$start_date AND
$end_date"
;
$dt = DB::query(
$sql);
?>
mysql分表后组合查询
标签：art 查询 组合查询 tar next int pre 组合 span
