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Laravel 的查询构建器支持 PostgreSQL 的日期和时间函数。以下是一些常用的日期和时间函数及其在 Laravel 中的用法:
use Illuminate\Support\Facades\DB;
$currentDateTime = DB::table('your_table_name')->select(DB::raw('CURRENT_TIMESTAMP'))->first();
use Illuminate\Support\Facades\DB;
$date = DB::table('your_table_name')->select(DB::raw('date_part(\'day\', your_date_column) as day'))->first();
use Illuminate\Support\Facades\DB;
$date = DB::table('your_table_name')->select(DB::raw("to_char(your_date_column, 'DD') as day"))->first();
use Illuminate\Support\Facades\DB;
$hour = DB::table('your_table_name')->select(DB::raw('date_part(\'hour\', your_date_column) as hour'))->first();
use Illuminate\Support\Facades\DB;
$minute = DB::table('your_table_name')->select(DB::raw('date_part(\'minute\', your_date_column) as minute'))->first();
use Illuminate\Support\Facades\DB;
$second = DB::table('your_table_name')->select(DB::raw('date_part(\'second\', your_date_column) as second'))->first();
use Illuminate\Support\Facades\DB;
$newDate = DB::table('your_table_name')
->where('id', 1)
->update([
'your_date_column' => DB::raw('your_date_column + INTERVAL \'1 day\'')
]);
use Illuminate\Support\Facades\DB;
$newDate = DB::table('your_table_name')
->where('id', 1)
->update([
'your_date_column' => DB::raw('your_date_column - INTERVAL \'1 day\'')
]);
use Illuminate\Support\Facades\DB;
$formattedDate = DB::table('your_table_name')
->select(DB::raw("to_char(your_date_column, 'YYYY-MM-DD HH24:MI:SS') as formatted_date"))
->first();
请注意,这些示例假设您已经连接到了 PostgreSQL 数据库。如果您的数据库连接设置不同,请确保在 config/database.php
文件中正确配置您的连接信息。
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