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DBquery
- 2. • Бичигдэх хэлбэр
• SELECT column_name,column_name
FROM table_name
WHERE column_name operator value;
• Жишээ
• SELECT *FROM OrderName WHERE Customer='Hansan';
- 3. • Бичигдэх хэлбэр
• DELETE FROM table_name
WHERE some_column=some_value;
• Жишээ
• DELETE FROM employees_usa WHERE Em_ID='01';
- 4. • Бичигдэх хэлбэр
• UPDATE table_name
SET column1=value1,column2=value2,...
WHERE some_column=some_value;
• Жишээ
• UPDATE employees_usa
SET Em_ID='01', Em_name='Turner, Sally‘
WHERE Em_ID='02';