創建數據庫:
CREATE DATABASE database_name;
刪除數據庫:
DROP DATABASE database_name;
創建表:
CREATE TABLE table_name ( column1 datatype, column2 datatype, ...);
刪除表:
DROP TABLE table_name;
查詢表的結構:
DESCRIBE table_name;
查詢表中所有數據:
SELECT * FROM table_name;
查詢特定列的數據:
SELECT column1, column2 FROM table_name;
使用WHERE子句進行條件查詢:
SELECT * FROM table_name WHERE condition;
使用ORDER BY對結果進行排序:
SELECT * FROM table_name ORDER BY column ASC;
使用LIMIT限制查詢結果的數量:
SELECT * FROM table_name LIMIT 10;
使用JOIN進行表的連接查詢:
SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;
使用GROUP BY進行分組查詢:
SELECT column, COUNT(*) FROM table_name GROUP BY column;
使用HAVING進行分組后的條件篩選:
SELECT column, COUNT(*) FROM table_name GROUP BY column HAVING COUNT(*) > 10;
使用SUM、AVG、MIN、MAX等聚合函數:
SELECT SUM(column), AVG(column), MIN(column), MAX(column) FROM table_name;
插入新數據:
INSERT INTO table_name (column1, column2) VALUES (value1, value2);
更新數據:
UPDATE table_name SET column1 = new_value WHERE condition;
刪除數據:
DELETE FROM table_name WHERE condition;
創建索引:
CREATE INDEX index_name ON table_name (column);
刪除索引:
DROP INDEX index_name ON table_name;
創建視圖:
CREATE VIEW view_name AS SELECT column1, column2 FROM table_name WHERE condition;
刪除視圖:
DROP VIEW view_name;
創建存儲過程:
CREATE PROCEDURE procedure_nameASBEGIN -- 存儲過程的代碼END;
刪除存儲過程:
DROP PROCEDURE procedure_name;
創建觸發器:
CREATE TRIGGER trigger_nameAFTER INSERT ON table_nameFOR EACH ROWBEGIN -- 觸發器的代碼END;
刪除觸發器:
DROP TRIGGER trigger_name ON table_name;
創建用戶:
CREATE USER username WITH PASSword 'password';
刪除用戶:
DROP USER username;
授予用戶權限:
GRANT permission ON object TO user;
撤銷用戶權限:
REVOKE permission ON object FROM user;
創建數據庫備份:
BACKUP DATABASE database_name TO disk = 'pathtobackupfile.bak';
恢復數據庫備份:
RESTORE DATABASE database_name FROM disk = 'pathtobackupfile.bak';
創建事務:
BEGIN TRANSACTION;
提交事務:
COMMIT;
回滾事務:
ROLLBACK;
SQL Server:
QUIT;
這些操作命令示例涵蓋了SQL Server中常用的數據庫管理、表操作、數據查詢、數據插入、數據更新和數據刪除等功能。您可以根據具體需求和場景使用這些命令,并根據需要進行修改和擴展。