MySQL是一款非常流行的關(guān)系型數(shù)據(jù)庫管理系統(tǒng),通過SQL語言來操作數(shù)據(jù)庫。下面是MySQL數(shù)據(jù)庫SQL語句大全:
創(chuàng)建表: CREATE TABLE table_name ( column1 datatype, column2 datatype, column3 datatype, ..... ); 刪除表: DROP TABLE table_name; 插入數(shù)據(jù): INSERT INTO table_name (column1, column2, column3, ...) VALUES (value1, value2, value3, ...); 更新數(shù)據(jù): UPDATE table_name SET column_name = new_value WHERE column_name = some_value; 刪除數(shù)據(jù): DELETE FROM table_name WHERE column_name = some_value; 查詢數(shù)據(jù): SELECT column1, column2, ...FROM table_name WHERE condition; 查詢數(shù)據(jù)并排序: SELECT column1, column2, ...FROM table_name ORDER BY column_name ASC|DESC; 查詢數(shù)據(jù)并分組: SELECT column_name, COUNT(*) FROM table_name GROUP BY column_name; 使用函數(shù)查詢數(shù)據(jù): SELECT AVG(column_name) FROM table_name; 使用子查詢查詢數(shù)據(jù): SELECT column_name(s) FROM table_name WHERE column_name IN (SELECT column_name FROM table_name WHERE condition); 聯(lián)合查詢: SELECT column_name(s) FROM table_name1 UNION SELECT column_name(s) FROM table_name2; JOIN查詢: SELECT column_name(s) FROM table_name1 JOIN table_name2 ON table_name1.column_name = table_name2.column_name; 查詢數(shù)據(jù)并限制數(shù)量: SELECT column_name(s) FROM table_name LIMIT num; 查詢數(shù)據(jù)并跳過前幾個數(shù)據(jù): SELECT column_name(s) FROM table_name OFFSET num;
以上就是MySQL數(shù)據(jù)庫SQL語句大全,其中包含了常用的增、刪、改、查等操作語句。通過這些語句,我們可以很方便地對數(shù)據(jù)庫進(jìn)行管理和操作。