{"id":139658,"date":"2024-10-31T19:34:24","date_gmt":"2024-10-31T11:34:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/139658\/"},"modified":"2024-10-31T19:34:25","modified_gmt":"2024-10-31T11:34:25","slug":"sql-server%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%b8%b8%e7%94%a8%e7%9a%84sql%e8%aa%9e%e5%8f%a5%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/139658\/","title":{"rendered":"SQL Server\u6578\u64da\u5eab\u4e2d\u5e38\u7528\u7684sql\u8a9e\u53e5\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"

SQL Server\u6578\u64da\u5eab\u4e2d\u5e38\u7528\u7684SQL\u8a9e\u53e5\u6709\u54ea\u4e9b\uff1f<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0cSQL Server\u4f5c\u70ba\u4e00\u7a2e\u6d41\u884c\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u696d\u52d9\u74b0\u5883\u4e2d\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u4f01\u696d\u9084\u662f\u5927\u578b\u4f01\u696d\uff0cSQL Server\u90fd\u80fd\u6709\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u4e00\u4e9b\u5728SQL Server\u4e2d\u5e38\u7528\u7684SQL\u8a9e\u53e5\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528\u9019\u4e00\u5f37\u5927\u7684\u5de5\u5177\u3002<\/p>\n

1. SELECT \u8a9e\u53e5<\/h2>\n

SELECT\u8a9e\u53e5\u662fSQL\u4e2d\u6700\u57fa\u672c\u7684\u67e5\u8a62\u8a9e\u53e5\uff0c\u7528\u65bc\u5f9e\u6578\u64da\u5eab\u4e2d\u6aa2\u7d22\u6578\u64da\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

SELECT column1, column2, ...\nFROM table_name\nWHERE condition;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u5f9e\u540d\u70ba\u201cCustomers\u201d\u7684\u8868\u4e2d\u9078\u64c7\u6240\u6709\u5ba2\u6236\u7684\u59d3\u540d\u548c\u5730\u5740\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n
SELECT Name, Address\nFROM Customers;<\/code><\/pre>\n
2. INSERT \u8a9e\u53e5<\/h2>\n
INSERT\u8a9e\u53e5\u7528\u65bc\u5411\u6578\u64da\u5eab\u8868\u4e2d\u63d2\u5165\u65b0\u8a18\u9304\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
INSERT INTO table_name (column1, column2, ...)\nVALUES (value1, value2, ...);<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u5411\u201cCustomers\u201d\u8868\u4e2d\u63d2\u5165\u4e00\u689d\u65b0\u5ba2\u6236\u8a18\u9304\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n
INSERT INTO Customers (Name, Address)\nVALUES ('\u5f35\u4e09', '\u9999\u6e2f');<\/code><\/pre>\n
3. UPDATE \u8a9e\u53e5<\/h2>\n
UPDATE\u8a9e\u53e5\u7528\u65bc\u4fee\u6539\u6578\u64da\u5eab\u8868\u4e2d\u7684\u73fe\u6709\u8a18\u9304\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
UPDATE table_name\nSET column1 = value1, column2 = value2, ...\nWHERE condition;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u66f4\u65b0\u201cCustomers\u201d\u8868\u4e2d\u67d0\u4f4d\u5ba2\u6236\u7684\u5730\u5740\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n
UPDATE Customers\nSET Address = '\u65b0\u5730\u5740'\nWHERE Name = '\u5f35\u4e09';<\/code><\/pre>\n
4. DELETE \u8a9e\u53e5<\/h2>\n
DELETE\u8a9e\u53e5\u7528\u65bc\u5f9e\u6578\u64da\u5eab\u8868\u4e2d\u522a\u9664\u8a18\u9304\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
DELETE FROM table_name\nWHERE condition;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u522a\u9664\u201cCustomers\u201d\u8868\u4e2d\u540d\u70ba\u201c\u5f35\u4e09\u201d\u7684\u5ba2\u6236\u8a18\u9304\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n
DELETE FROM Customers\nWHERE Name = '\u5f35\u4e09';<\/code><\/pre>\n
5. CREATE TABLE \u8a9e\u53e5<\/h2>\n
CREATE TABLE\u8a9e\u53e5\u7528\u65bc\u5275\u5efa\u65b0\u7684\u6578\u64da\u8868\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
CREATE TABLE table_name (\n    column1 datatype,\n    column2 datatype,\n    ...\n);<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u5275\u5efa\u4e00\u500b\u540d\u70ba\u201cOrders\u201d\u7684\u65b0\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n
CREATE TABLE Orders (\n    OrderID int,\n    CustomerID int,\n    OrderDate datetime\n);<\/code><\/pre>\n
6. ALTER TABLE \u8a9e\u53e5<\/h2>\n
ALTER TABLE\u8a9e\u53e5\u7528\u65bc\u4fee\u6539\u73fe\u6709\u7684\u6578\u64da\u8868\u7d50\u69cb\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
ALTER TABLE table_name\nADD column_name datatype;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u5411\u201cCustomers\u201d\u8868\u4e2d\u6dfb\u52a0\u4e00\u500b\u201cEmail\u201d\u6b04\u4f4d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n
ALTER TABLE Customers\nADD Email varchar(255);<\/code><\/pre>\n
7. DROP TABLE \u8a9e\u53e5<\/h2>\n
DROP TABLE\u8a9e\u53e5\u7528\u65bc\u522a\u9664\u6574\u500b\u6578\u64da\u8868\u53ca\u5176\u6240\u6709\u6578\u64da\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
DROP TABLE table_name;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u522a\u9664\u201cOrders\u201d\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n
DROP TABLE Orders;<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u4ee5\u4e0a\u4ecb\u7d39\u4e86\u5728SQL Server\u4e2d\u5e38\u7528\u7684\u5e7e\u7a2eSQL\u8a9e\u53e5\uff0c\u5305\u62ecSELECT\u3001INSERT\u3001UPDATE\u3001DELETE\u3001CREATE TABLE\u3001ALTER TABLE\u548cDROP TABLE\u7b49\u3002\u9019\u4e9b\u8a9e\u53e5\u662f\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u57fa\u790e\uff0c\u638c\u63e1\u5b83\u5011\u5c0d\u65bc\u6578\u64da\u7ba1\u7406\u548c\u5206\u6790\u81f3\u95dc\u91cd\u8981\u3002\u82e5\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u6216\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684\u696d\u52d9\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22SQL Server\u6578\u64da\u5eab\u4e2d\u5e38\u7528\u7684SQL\u8a9e\u53e5\uff0c\u5305\u62ecSELECT\u3001INSERT\u3001UPDATE\u3001DELETE\u7b49\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-139658","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139658","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=139658"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139658\/revisions"}],"predecessor-version":[{"id":139659,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/139658\/revisions\/139659"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=139658"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=139658"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=139658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}