<\/span><\/h2>\n\n\n\n\u6d4b\u8bd5\u7ed3\u679c\uff1a\u6570\u636e\u5148\u8f6c\u6210\u5de6\u4fa7\u5b57\u6bb5\u7684\u7c7b\u578b\uff0c\u7136\u540e\u6bd4\u8f83\u3002<\/p>\n\n\n\n
\u5982\u4e0b\u6700\u5178\u578b\u7684\u5c31\u662f\u6570\u5b5711\u548c\u5b57\u7b26\u4e32'9'. \u5982\u679c\u4ee5\u6570\u5b57\u4e3a\u57fa\u51c6\uff0c11\u5927\u4e8e9\uff0c \u5982\u679c\u4ee5\u5b57\u7b26\u4e32\u4e3a\u57fa\u51c6\uff0c'9'\u5927\u4e8e'11'<\/p>\n\n\n\n
\u91cd\u65b0\u751f\u6210\u4e86\u6570\u636e\ngbase> truncate table t;\r\nQuery OK, 8 rows affected (Elapsed: 00:00:00.46)\r\n\r\ngbase> insert into t values(1,9),(11,9),(9,1),(9,11);\r\nQuery OK, 4 rows affected (Elapsed: 00:00:00.18)\r\nRecords: 4 Duplicates: 0 Warnings: 0\r\n\ngbase> select * from t;\r\n+------+------+\r\n| id | name |\r\n+------+------+\r\n| 1 | 9 |\r\n| 11 | 9 |\r\n| 9 | 1 |\r\n| 9 | 11 |\r\n+------+------+\r\n4 rows in set (Elapsed: 00:00:00.02)\r\n\r\ngbase>\r\ngbase> select * from t where id>name;\r\n+------+------+\r\n| id | name |\r\n+------+------+\r\n| 11 | 9 |<\/span><\/strong>\r\n| 9 | 1 |\r\n+------+------+\r\n2 rows in set (Elapsed: 00:00:00.01)\r\n\r\ngbase> select * from t where name>id;\r\n+------+------+\r\n| id | name |\r\n+------+------+\r\n| 1 | 9 |\r\n| 11 | 9 |<\/strong><\/span>\r\n+------+------+\r\n2 rows in set (Elapsed: 00:00:00.02)\r\n<\/code><\/pre>\n\n\n\n<\/span>1\u4e2a\u5e38\u91cf\u4e00\u4e2a\u5b57\u6bb5\u6bd4\u8f83<\/span><\/h2>\n\n\n\n\u6700\u5e38\u89c1\u7684\u573a\u666f\uff0c\u5b57\u6bb5\u7b49\u4e8e\u67d0\u4e2a\u6570\u503c\u3002\u5982\u4e0b2\u4e2a\u5b57\u6bb5\u5206\u522b\u662fint\u548cvarchar\u3002<\/p>\n\n\n\n
\u6d4b\u8bd5\u7ed3\u679c\uff0c\u5e38\u91cf\u548c\u5b57\u6bb5\u6bd4\u8f83\uff0c\u90fd\u662f\u8f6c\u6362\u6210\u5b57\u6bb5\u7684\u7c7b\u578b\u540e\u518d\u6bd4\u8f83\u3002<\/p>\n\n\n\n
<\/span>\u6d4b\u8bd5\u8868<\/span><\/h3>\n\n\n\ngbase> create table t(id int, name varchar(10));\r\nQuery OK, 0 rows affected (Elapsed: 00:00:00.51)\r\n\r\ngbase> insert into t values(1,1),(100,100);\r\nQuery OK, 2 rows affected (Elapsed: 00:00:00.25)\r\nRecords: 2 Duplicates: 0 Warnings: 0\r\n\r\ngbase> select * from t;\r\n+------+------+\r\n| id | name |\r\n+------+------+\r\n| 1 | 1 |\r\n| 100 | 100 |\r\n+------+------+\r\n2 rows in set (Elapsed: 00:00:00.05)\r\n\r\n<\/code><\/pre>\n\n\n\n<\/span>\u6570\u5b57\u5b57\u6bb5\u5bf9\u6bd4\u5e38\u91cf<\/span><\/h3>\n\n\n\n\u5982\u4e0b\u6d4b\u8bd5\u7ed3\u679c\u770b\uff0c\u65e0\u8bba\u5e38\u91cf\u662f\u6570\u5b57\u8fd8\u662f\u5b57\u7b26\u4e32\uff0c\u65e0\u8bba\u662f\u6bd4\u8f83\u7b26\u7684\u5de6\u9762\u8fd8\u662f\u53f3\u9762\uff0c\u6700\u7ec8\u90fd\u662f\u4ee5\u5b57\u6bb5\u7684\u6570\u5b57\u7c7b\u578b\u4e3a\u51c6\u3002<\/p>\n\n\n\n
gbase> select * from t where id>9;\r\n+------+------+\r\n| id | name |\r\n+------+------+\r\n| 100 | 100 |\r\n+------+------+\r\n1 row in set (Elapsed: 00:00:00.07)\r\n\r\ngbase> select * from t where id>'9';\r\n+------+------+\r\n| id | name |\r\n+------+------+\r\n| 100 | 100 |\r\n+------+------+\r\n1 row in set (Elapsed: 00:00:00.02)\r\n\r\ngbase> select * from t where 9<id;\r\n+------+------+\r\n| id | name |\r\n+------+------+\r\n| 100 | 100 |\r\n+------+------+\r\n1 row in set (Elapsed: 00:00:00.02)\r\n\r\ngbase> select * from t where '9'<id;\r\n+------+------+\r\n| id | name |\r\n+------+------+\r\n| 100 | 100 |\r\n+------+------+\r\n1 row in set (Elapsed: 00:00:00.02)\r\n<\/code><\/pre>\n\n\n\n<\/span>\u5b57\u7b26\u4e32\u5b57\u6bb5\u5bf9\u6bd4\u5e38\u91cf<\/span><\/h3>\n\n\n\ngbase> select * from t where name>9;\r\nEmpty set (Elapsed: 00:00:00.01)\r\n\r\ngbase> select * from t where name>'9';\r\nEmpty set (Elapsed: 00:00:00.05)\n\r\ngbase> select * from t where 9<name;\r\nEmpty set (Elapsed: 00:00:00.03)\r\n\r\ngbase> select * from t where '9'<name;\r\nEmpty set (Elapsed: 00:00:00.02)\r\n<\/code><\/pre>\n\n\n\n<\/span>Summary<\/span><\/h2>\n\n\n\n- \u4e24\u4e2a\u5e38\u91cf\u6bd4\u8f83\u65f6\uff0c\u4ee5\u4f18\u5148\u7ea7\u9ad8\u7684\u7c7b\u578b\u4e3a\u51c6\u8f6c\u6362<\/li>
- \u5b57\u6bb5\u548c\u5e38\u91cf\u6bd4\u8f83\u65f6\uff0c\u4ee5\u5b57\u6bb5\u7c7b\u578b\u4e3a\u57fa\u51c6\u8f6c\u6362<\/li>
- \u4e24\u4e2a\u5b57\u6bb5\u6bd4\u8f83\u65f6\uff0c\u4ee5\u5de6\u4fa7\u5b57\u6bb5\u7c7b\u578b\u4e3a\u57fa\u51c6\u8f6c\u6362<\/li><\/ul>\n\n\n\n
<\/p>","protected":false},"excerpt":{"rendered":"
\u5357\u5927\u901a\u7528GBase 8a\u5728\u505a\u6bd4\u8f83\u65f6\uff0c\u5982\u679c\u6570\u636e\u7c7b\u578b\u4e0d\u4e00\u81f4\uff0c\u5219\u4f1a\u6839\u636e\u4e00\u4e9b\u89c4\u5219\u8fdb\u884c\u81ea\u52a8\u8f6c\u6362\u3002\u672c\u6587\u901a\u8fc7\u4e00\u4e9b\u5b9e\u9645\u6837\u4f8b\u6765\u63a2\u8ba8\u8fd9\u4e9b\u81ea\u52a8\u8f6c\u6362\u7684\u89c4\u5219\u662f\u4ec0\u4e48\uff0c\u672c\u6587\u5173\u6ce8\u70b9\u653e\u5728\u5b57\u7b26\u4e32\u548c\u6570\u5b57\uff0c\u5176\u5b83\u7c7b\u578b\u7684\u5355\u72ec\u6587\u7ae0\u8ba8\u8bba\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-9075","post","type-post","status-publish","format-standard","hentry","category-gbase8a"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/9075","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=9075"}],"version-history":[{"count":16,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/9075\/revisions"}],"predecessor-version":[{"id":9251,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/9075\/revisions\/9251"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=9075"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=9075"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=9075"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}