SQL - WHERE CLAUSE
SQL - WHERE CLAUSE
Jakarta, 29 Januari 2020
Where Clause di gunakan untuk memfilter records / data dimana saat where statement di gunakan, data yang di tampilkan adalah data yang sesuai dengan kondisi yang telah di tentukan.
SELECT column1, column2, ...
FROM table_name
WHERE condition;
Contoh :
SELECT * FROM Customers;
Hasilnya :
CustomerID | CustomerName | ContactName | Address | City | PostalCode | Country |
---|---|---|---|---|---|---|
1 | Alfreds Futterkiste | Maria Anders | Obere Str. 57 | Berlin | 12209 | Germany |
2 | Ana Trujillo Emparedados y helados | Ana Trujillo | Avda. de la Constitución 2222 | México D.F. | 05021 | Mexico |
3 | Antonio Moreno Taquería | Antonio Moreno | Mataderos 2312 | México D.F. | 05023 | Mexico |
4 | Around the Horn | Thomas Hardy | 120 Hanover Sq. | London | WA1 1DP | UK |
5 | Berglunds snabbköp | Christina Berglund | Berguvsvägen 8 | Luleå | S-958 22 | Sweden |
Sekarang kita gunakan Where statement :
SELECT * FROM Customers WHERE Country ='Mexico';
Maka Hasilnya :
Number of Records: 2
CustomerID | CustomerName | ContactName | Address | City | PostalCode | Country |
---|---|---|---|---|---|---|
2 | Ana Trujillo Emparedados y helados | Ana Trujillo | Avda. de la Constitución 2222 | México D.F. | 05021 | Mexico |
3 | Antonio Moreno Taquería | Antonio Moreno | Mataderos 2312 | México D.F. | 05023 | Mexico |
Berikut ini beberapa operators (syntax) yang dapat di gunakan di Where clause :
Operator | Description | |
---|---|---|
= | Equal | |
> | Greater than | |
< | Less than | |
>= | Greater than or equal | |
<= | Less than or equal | |
<> | Not equal. Note: In some versions of SQL this operator may be written as != | |
BETWEEN | Between a certain range | |
LIKE | Search for a pattern | |
IN | To specify multiple possible values for a column |
Sekian Tutorial SQL - Where Clause.. Terima Kasih dan Semoga Bermanfaat.
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