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Is there an elegant way of getting a single result from an SQLite SELECT query when using Python? for example: conn = sqlite3.connect('db_path.db') cursor=conn.cursor() cursor.execute("SELECT MAX(value) FROM table") for row in cursor: for elem in row: maxVal = elem
30 Ιουλ 2022 · You can do this by adding the following line to your file: use Illuminate\Support\Facades\DB; Raw SQL calls can be made to databases, using the statement () method. Generally the statement () is used in the following format: DB::statement("sql_query");
13 Σεπ 2022 · To update a single row, you can use the find() method to fetch the record by its id after which you can set the properties you want to new values. After this call the save() method to persist the changes to the database.
6 Σεπ 2022 · 1. get () This method returns all rows that satisfy constraints specified in a query. Here is an example of the method in use. DB::table('students')->where('name', 'Rosalyn Labadie')->orWhere('age', 21)->get(); 2. first ()/firstOrFail () This method returns the first row that satisfies the constraints specified in a query.
5 Αυγ 2021 · Eloquent provides several methods that can be accessed directly from models to query the database and filter results without having to write SQL statements. A typical SELECT query to obtain all rows from a table, which in pure SQL looks something like SELECT * FROM links, can be accomplished in Eloquent with code like this:
The value() method is a query builder method that is chained to other queries to get a single value from the retrieved row or record. Syntax $email = DB::table('users')->where('name', 'John')->value('email');
Using query builder, get the single column value such as groupName $groupName = DB::table('users')->where('username', $username)->pluck('groupName'); For Laravel 5.1 $groupName=DB::table('users')->where('username', $username)->value('groupName'); Or, Using user model, get the single column value
