SQL Server\u6570\u636e\u7ba1\u7406<\/p>\n
\u5982\u679c\u6bcf\u6b21\u521b\u5efa\u6570\u636e\u5e93\uff0c\u8868\u6216\u8005\u4ece\u8868\u4e2d\u53d6\u5f97\u6570\u636e\uff0c\u90fd\u9700\u8981\u624b\u5de5\u5728\u4f01\u4e1a\u7ba1\u7406\u5668\u4e2d\u8fdb\u884c\uff0c\u4e0d\u4f46\u4e0d\u65b9\u4fbf\uff0c\u800c\u4e14\u4e5f\u4e0d\u80fd\u63d0\u4f9b\u7ed9\u7a0b\u5e8f\u4f7f\u7528\uff0c\u6240\u4ee5\u6570\u636e\u5e93\u4e5f\u9700\u8981\u4e00\u5957\u6307\u4ee4\u96c6\uff0c\u80fd\u591f\u8bc6\u522b\u6307\u4ee4\uff0c\u6267\u884c\u5bf9\u5e94\u64cd\u4f5c\u5e76\u4e3a\u7a0b\u5e8f\u63d0\u4f9b\u6570\u636e\u3002\u76ee\u524d\u6807\u51c6\u7684\u6307\u4ee4\u96c6\u5c31\u662f\uff33\uff31\uff2c<\/p>\n
SQL\u8bed\u8a00\u662f1974\u5e74\u7531Boyce\u548cChamberlin\u63d0\u51fa\u7684\uff0c1975\u5e74\u81f3 1979\u5e74IBM\u516c\u53f8\u7814\u5236\u7684\u5173\u7cfb\u6570\u636e\u5e93\u7cfb\u7edf\u539f\u5f62\u7cfb\u7edfSystem R\u5b9e\u73b0\u4e86\u8fd9\u79cd\u8bed\u8a00\uff0c\u7ecf\u8fc7\u591a\u5e74\u53d1\u5c55\uff0cSQL\u8bed\u8a00\u5df2\u7ecf\u6210\u4e3a\u5173\u7cfb\u6570\u636e\u5e93\u7684\u6807\u51c6\u8bed\u8a00\u3002<\/p>\n
T-SQL\uff08Transact-SQL\uff09\u662f\u6807\u51c6\u7684SQL\u8bed\u8a00\u52a0\u5f3a\u7248\uff0c\u9664\u4e86\u6807\u51c6\u7684SQL\u547d\u4ee4\u5916\uff0c\u8fd8\u6269\u5145\u4e86\u5982\u53d8\u91cf\u58f0\u660e\u3001\u6d41\u7a0b\u63a7\u5236\u3001\u529f\u80fd\u51fd\u6570\u7b49\u3002<\/p>\n
T-SQL\u7684\u7ec4\u6210\uff1a
DML \u6570\u636e\u64cd\u4f5c\u8bed\u8a00\uff0c\u7528\u6765\u67e5\u8be2\uff0c\u63d2\u5165\uff0c \u5220\u9664\uff0c\u4fee\u6539\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\uff0c\u5982Select\u3001Insert\uff0cUpdate \u4ee5\u53caDelete\u7b49
DCL \u6570\u636e\u63a7\u5236\u8bed\u8a00\uff0c\u7528\u6765\u63a7\u5236\u6570\u636e\u5e93\u7ec4\u5efa\u7684\u5b58\u53d6\u8bb8\u53ef\uff0c\u5b58\u53d6\u5168\u53bf\u7b49\u547d\u4ee4\uff0c\u5982Grant \uff0cRevoke\u7b49
DDL \u6570\u636e\u5b9a\u4e49\u8bed\u8a00 \u7528\u6765\u521b\u5efa\u6570\u636e\u5e93\uff0c\u6570\u636e\u5e93\u5bf9\u8c61\u548c\u5b9a\u4e49\u5217\uff0c\u5927\u90e8\u5206\u4ee5 Create\u5f00\u5934\u7684\u547d\u4ee4\uff0c\u5982Create Table\uff0cCreate View \u53caDrdp Table\u7b49
\u9664\u6b64\u4e4b\u5916\uff0c T-SQL\u8fd8\u5305\u62ec\u53d8\u91cf\u58f0\u660e\uff0c\u5185\u5d4c\u51fd\u6570\u4ee5\u53ca\u5176\u4ed6\u4e00\u4e9b\u547d\u4ee4\u7b49\u3002<\/p>\n
\u6761\u4ef6\u8868\u8fbe\u5f0f\uff0c\u903b\u8f91\u8fd0\u7b97\u7b26\u3002
\u5e38\u91cf\uff1a\u8868\u793a\u5355\u4e2a\u5236\u5b9a\u6570\u636e\u503c\u7684\u7b26\u53f7\u3002
\u5217\u540d\uff1a\u8868\u4e2d\u5217\u7684\u540d\u79f0\uff0c\u8868\u8fbe\u5f0f\u4e2d\u4ec5\u5141\u8bb8\u4f7f\u7528\u5217\u7684\u540d\u79f0\u3002
\uff5b\u4e00\u5143\u8fd0\u7b97\u7b26\uff5d\uff1a\u4ec5\u6709\u4e00\u4e2a\u64cd\u4f5c\u4e66\u7684\u8fd0\u7b97\u7b26\u3002
\uff5b\u4e8c\u5143\u8fd0\u7b97\u7b26\uff5d\uff1a\u5c06\u4e24\u4e2a\u64cd\u4f5c\u6570\u7ec4\u5408\u6267\u884c\u64cd\u4f5c\u7684\u8fd0\u7b97\u7b26\u3002
\u6bd4\u8f83\u8fd0\u7b97\u7b26\uff1a
\uff1d\u3000\u3000\u3000\u7b49\u4e8e
\uff1e\u3000\u3000\u3000\u5927\u4e8e
\uff1c\u3000\u3000\u3000\u5c0f\u4e8e
\uff1e\uff1d\u3000\u3000\u5927\u4e8e\u6216\u7b49\u4e8e
\uff1c\uff1d\u3000\u3000\u5c0f\u4e8e\u6216\u7b49\u4e8e
\uff1c\uff1e\u3000\u3000\u4e0d\u7b49\u4e8e
\uff01\u3000\u3000\u3000\u975e<\/p>\n
\u901a\u914d\u7b26\uff1a
‘_’ \u4e00\u4e2a\u5b57\u7b26 \u5982\uff1aA like ‘c_’
% \u4efb\u610f\u957f\u5ea6\u5b57\u7b26\u4e32 \u5982\uff1aB like ‘CO_%’
[] \u62ec\u53f7\u4e2d\u6240\u6307\u5b9a\u8303\u56f4\u7684\u4e00\u4e2a\u5b57\u7b26 \u5982\uff1aC like ‘abc[1-2]’
[^] \u4e0d\u5728\u62ec\u53f7\u4e2d\u5236\u5b9a\u8303\u56f4\u7684\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26 \u5982\uff1aD like ‘abcd[^1-2]’<\/p>\n
\u903b\u8f91\u8868\u8fbe\u5f0f
AND \u4e0e \u4e24\u4e2a\u6761\u4ef6\u90fd\u4e3a\u771f\uff0c\u8fd4\u56de\u771f
or \u6216 \u4e24\u4e2a\u6761\u4ef6\u53ea\u8981\u4e00\u4e2a\u4e3a\u771f\uff0c\u8fd4\u56de\u771f
NOT \u8fd4\u56de\u76f8\u53cd\u503c
\u4f18\u5148\u7ea7\uff1aNOT AND or<\/p>\n
\u6570\u636e\u63d2\u5165\uff1a
\u63d2\u5165\u6570\u636e\u884c\uff1aInsert [INTO] <\u8868\u540d> [\u5217\u540d] VALUES <\u503c\u5217\u8868>
[INTO] \u53ef\u9009\uff0c\u53ef\u7701\u7565\u3002\u8868\u540d\u5fc5\u987b\uff0c\u5217\u540d\u53ef\u9009\uff0c\u7701\u7565\u5219\u4f9d\u6b21\u63d2\u5165\u3002\u591a\u4e2a\u5217\u548c\u503c\u7528\u9017\u53f7\u5206\u9694\u3002
\u5982\uff1aInsert INTO Studio \uff08NAME,ADDRESS,EMAIL,SEX\uff09VLAUE\uff08’\u5f20\u4e09’,’\u677e\u82b1\u6c5f’,’Zhangsan@126.com’,0\uff09
\u6ce8\uff1a\u4e0d\u80fd\u63d2\u5165\u534a\u884c\u6216\u51e0\u5217\u6570\u636e\u3002\u6570\u636e\u503c\u6811\u6728\u5fc5\u987b\u548c\u5217\u76f8\u540c\uff0c\u4e0d\u80fd\u4e3a\u6807\u793a\u5217\u6307\u5b9a\u503c\uff0c\u5bf9\u5b57\u7b26\u578b\u5217\uff0c\u63d2\u5165\u6570\u636e\u65f6\u7528\u5355\u5f15\u53f7\u5f15\u8d77\u6765\uff0c\u5c3d\u7ba1\u53ef\u4ee5\u4e0d\u6307\u5b9a\u5217\u540d\uff0c\u4f46\u6700\u597d\u660e\u786e\u6307\u5b9a\u63d2\u5165\u5217\u548c\u503c\uff0c\u5982\u679c\u8bbe\u8ba1\u8868\u7684\u65f6\u5019\u6307\u5b9a\u67d0\u5217\u4e0d\u5141\u8bb8\u4e3a\u7a7a\u5219\u8be5\u5217\u5fc5\u987b\u63d2\u5165\u6570\u636e\uff0c\u63d2\u5165\u6570\u636e\u9879\uff0c\u8981\u6c42\u7b26\u5408\u68c0\u67e5\u7ea6\u675f\u7684\u8981\u6c42\u3002\u53ef\u4ee5\u7528DEFAULT \u5173\u952e\u5b57\u4ee3\u66ff\u63d2\u5165\u7684\u7f3a\u7701\u503c\u5217\u7684\u503c\u3002<\/p>\n
\u63d2\u5165\u591a\u884c\u6570\u636e\uff1a
1 \u901a\u8fc7Insert Select \u5c06\u73b0\u6709\u8868\u6570\u636e\u6dfb\u52a0\u5230\u65b0\u8868
Insert INTO Tongxue \uff08’\u59d3\u540d’,’\u5730\u5740’,’\u7535\u5b50\u90ae\u4ef6’\uff09
Select name\uff0caddress\uff0cemail
FROM Student
\u4e0a\u9762\u7684\u8bed\u53e5\uff0c\u7528Select\u67e5\u8be2Student\u8868\u4e2d\u5df2\u7ecf\u5b58\u5728\u7684\u59d3\u540d\u5730\u5740\u7535\u5b50\u90ae\u4ef6\u63d2\u5165\u5230\u65b0\u8868Tongxue \u4e2d<\/p>\n
2 \u901a\u8fc7Select Into \u5c06\u73b0\u6709\u8868\u6570\u636e\u6dfb\u52a0\u5230\u65b0\u8868
Select stu.name,stu.address,stu.email
INTO Tongxue
FROM stu
\u5c06\u521b\u5efa\u65b0\u8868Tongxue \u7136\u540e\u628a Stu \u8868\u4e2d\u7684\u6570\u636e\u6dfb\u52a0\u5230Tongxue\u8868\u4e2d\u3002
\u521b\u5efa\u65b0\u6807\u793a\u5217\uff1a
Select IDENTITY\uff08\u6570\u636e\u7c7b\u578b\uff0c\u6807\u793a\u79cd\u5b50\uff0c\u6807\u793a\u589e\u957f\u91cf\uff09 AS \u5217\u540d
INTO \u65b0\u8868
FROM \u539f\u59cb\u8868<\/p>\n
3 \u901a\u8fc7UNION \u5173\u952e\u5b57\u5408\u5e76\u6570\u636e\u5e76\u63d2\u5165
Insert STU\uff08name\uff0caddress\uff0csex\uff09
Select ‘\u59d3\u540d1’\uff0c’\u5730\u57401 ‘\uff0c0 UNION
Select ‘\u59d3\u540d2’\uff0c’\u5730\u57402 ‘\uff0c0 UNION
Select ‘\u59d3\u540d3’\uff0c’\u5730\u57403 ‘\uff0c0 UNION
Select ‘\u59d3\u540d4’\uff0c’\u5730\u57404 ‘\uff0c0 UNION
Select ‘\u59d3\u540d5’\uff0c’\u5730\u57405 ‘\uff0c0 <\/p>\n
\u66f4\u65b0\u6570\u636e
Update <\u8868\u540d> SET <\u5217\u540d=\u66f4\u65b0\u503c> [Where <\u66f4\u65b0\u6761\u4ef6>]
\u5176\u4e2d SET\u540e\u9762\u7d27\u8ddf\u591a\u4e2a\u6570\u636e\u5217\u66f4\u65b0\u503c\uff0c\u4e0d\u9650\u4e00\u4e2a\uff0cWhere\u662f\u53ef\u9009\u7684\uff0c\u7528\u6765\u9650\u5236\u6761\u4ef6\uff0c\u4e0d\u9650\u5236\u5219\u66f4\u65b0\u6240\u6709\u6570\u636e\u884c\uff0c\u6ce8\u610f\uff0c\u4f7f\u7528Update \u53ef\u80fd\u66f4\u65b0\u4e00\u884c\u6570\u636e\uff0c\u4e5f\u53ef\u80fd\u66f4\u65b0\u591a\u884c\u6570\u636e\uff0c \u4e5f\u53ef\u80fd\u4e0d\u4f1a\u66f4\u65b0\u4efb\u4f55\u6570\u636e\u3002<\/p>\n
\u6570\u636e\u5220\u9664
1 \u7528Delete\u5220\u9664
Delete FROM <\u8868\u540d> [Where <\u5220\u9664\u6761\u4ef6>]
\u5220\u9664\u6574\u6761\u8bb0\u5f55\uff0cDelete\u540e\u9762\u4e0d\u80fd\u51fa\u73b0\u5b57\u6bb5\u5b57\u6837\u3002
2 \u4f7f\u7528TRUNCATE TABLE \u5220\u9664\u6570\u636e
\u7528\u6765\u5220\u9664\u6240\u6709\u884c\u6570\u636e\uff0c\u7c7b\u4f3c\u6ca1\u6709Where\u7684Delete\u8bed\u53e5 \uff0cTRUNCATE TABLE\u8fd0\u884c\u901f\u5ea6\u5feb\uff0c\u800c\u4e14\u4f7f\u7528\u8d44\u6e90\u548c\u65e5\u5fd7\u66f4\u5c11\uff0cTRUNCATE TABLE\u5220\u9664\u8868\u4e2d\u6240\u6709\u884c\uff0c\u4f46\u662f\u7ed3\u6784\u3001\u5217\u3001\u7ea6\u675f\u3001\u7d22\u5f15\u7b49\u4e0d\u4f1a\u88ab\u6539\u52a8\uff0c\u4e0d\u80fd\u5220\u9664\u7528\u4e8e\u6709\u5916\u952e\u7ea6\u675f\u5f15\u7528\u7684\u8868\uff0c\u8fd9\u79cd\u60c5\u51b5\u9700\u8981\u4f7f\u7528Delete\u8bed\u53e5\u3002<\/p>\n
\u53e6\uff1aDelete\u8bed\u53e5\u6bcf\u6b21\u5220\u9664\u4e00\u884c\uff0c\u5e76\u5728\u4e8b\u52a1\u65e5\u5fd7\u4e2d\u5c09\u5220\u9664\u884c\u8bb0\u5f55\u4e00\u9879\uff0cTRUNCATE TABLE\u901a\u8fc7\u91ca\u653e\u5b58\u50a8\u8868\u6570\u636e\u6240\u7528\u7684\u6570\u636e\u9875\u6765\u5220\u9664\u6570\u636e\uff0c\u5728\u4e8b\u52a1\u65e5\u5fd7\u4e2d\u53ea\u8bb0\u5f55\u9875\u7684\u91ca\u653e\u3002
TRUNCATE TABLE\u5220\u9664\u8868\u4e2d\u6240\u6709\u884c\uff0c\u4f46\u8868\u7ed3\u6784\u53ca\u5176\u5217\u3001\u7ea6\u675f\u3001\u7d22\u5f15\u7b49\u4fdd\u6301\u4e0d\u53d8\uff0c\u65b0\u884c\u8868\u793a\u6240\u7528\u7684\u8ba1\u6570\u503c\u91cd\u7f6e\u4e3a\u8be5\u5217\u79cd\u5b50\uff0c\u5982\u679c\u60f3\u4fdd\u7559\u6807\u793a\u5217\u8ba1\u6570\uff0c\u9700\u8981\u6539\u7528Delete\u8bed\u53e5\/\u5bf9\u4e8eFOREIGN KEY\u7ea6\u675f\u5f15\u7528\u7684\u4e3b\u8868\u4e0d\u80fd\u4f7f\u7528TRUNCATE TABLE \uff0c\u800c\u5e94\u4f7f\u7528\u4e0d\u5e26Where\u7684Delete\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
SQL Server\u6570\u636e\u7ba1\u7406 \u5982\u679c\u6bcf\u6b21\u521b\u5efa\u6570\u636e\u5e93\uff0c\u8868\u6216\u8005\u4ece\u8868\u4e2d\u53d6\u5f97\u6570...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-31","post","type-post","status-publish","format-standard","hentry","category-DB"],"_links":{"self":[{"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/posts\/31","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.poloo.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=31"}],"version-history":[{"count":0,"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/posts\/31\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.poloo.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=31"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.poloo.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=31"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.poloo.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=31"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}