{"id":1008,"date":"2022-03-17T22:27:20","date_gmt":"2022-03-17T14:27:20","guid":{"rendered":"http:\/\/www.henrycome.com\/wordpress\/?p=1008"},"modified":"2022-03-19T09:40:51","modified_gmt":"2022-03-19T01:40:51","slug":"20220317214213","status":"publish","type":"post","link":"http:\/\/www.henrycome.com\/wordpress\/202203172227\/1008","title":{"rendered":"\u3010\u6570\u636e\u5e93\u57fa\u7840\u3011\u6570\u636e\u5e93\u3001\u8868\u3001\u5b57\u6bb5\u7684\u521b\u5efa\u548c\u5220\u9664"},"content":{"rendered":"

\u56fe\u5f62\u754c\u9762\u7684\u7ba1\u7406\u65b9\u5f0f<\/h3>\n

\u7f51\u7ad9\u6570\u636e\u5e93phpmyadmin\uff0c\u684c\u9762\u5ba2\u6237\u7aefaccess\uff0csqlserver\u7684\u7ba1\u7406\u5de5\u5177\uff0cMySQL Workbench<\/a>\u7b49\u5de5\u5177\u3002<\/p>\n

\u547d\u4ee4\u65b9\u5f0f<\/h3>\n

\u521b\u5efa\u6570\u636e\u5e93<\/h4>\n
CREATE DATABASE \u6570\u636e\u5e93\u540d\u79f0<\/code><\/pre>\n
\u521b\u5efa\u6570\u636e\u8868<\/h4>\n
CREATE TABLE \u8868\u540d\u79f0\n(\n\u5217\u540d\u79f01 \u6570\u636e\u7c7b\u578b,\n\u5217\u540d\u79f02 \u6570\u636e\u7c7b\u578b,\n.......\n)<\/code><\/pre>\n
\u4f8b\u5b50\uff1a\u6570\u636e\u7c7b\u578b\u540e\u9762\u7684\u62ec\u53f7\uff0c\u89c4\u5b9a\u4e86\u5b57\u7b26\u957f\u5ea6<\/p>\n
CREATE TABLE Person \n(\nLastName varchar(30),\nFirstName varchar,\nAddress varchar,\nAge int(3)\n)<\/code><\/pre>\n
\u5982\u4f55\u4f7f\u7528\u6570\u636e\u7c7b\u578b\u53ca\u5b83\u4eec\u7684\u957f\u5ea6\uff0c\u53c2\u8003\u8868\u683c\uff1a
\n\u8be6\u7ec6\u7684\u6570\u636e\u7c7b\u578b\u53c2\u8003\uff0c\u4e0d\u540c\u6570\u636e\u5e93\u6570\u636e\u7c7b\u578b\u7a0d\u4e0d\u540c\uff0c\u94fe\u63a5\u4ecb\u7ecd\u4e86\u5e38\u89c1\u7684MSAccess\uff0cMSSQLSERVER\uff0cMySQL\u4e09\u79cd\u6570\u636e\u5e93\u7684\u6570\u636e\u7c7b\u578b\uff1a<\/p>\n
SQL \u6570\u636e\u7c7b\u578b
\nhttps:\/\/www.w3school.com.cn\/sql\/sql_datatypes.asp<\/a><\/p>\n\n\n\n\n\n\n\n\n\n
\u6570\u636e\u7c7b\u578b<\/th>\n\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n
integer(size)\uff0cint(size)\uff0csmallint(size)\uff0ctinyint(size)<\/td>\n\u4ec5\u5bb9\u7eb3\u6574\u6570\u3002\u5728\u62ec\u53f7\u5185\u89c4\u5b9a\u6570\u5b57\u7684\u6700\u5927\u4f4d\u6570\u3002<\/td>\n<\/tr>\n
decimal(size,d)\uff0cnumeric(size,d)<\/td>\n\u5bb9\u7eb3\u5e26\u6709\u5c0f\u6570\u7684\u6570\u5b57\u3002"size" \u89c4\u5b9a\u6570\u5b57\u7684\u6700\u5927\u4f4d\u6570\u3002"d" \u89c4\u5b9a\u5c0f\u6570\u70b9\u53f3\u4fa7\u7684\u6700\u5927\u4f4d\u6570\u3002<\/td>\n<\/tr>\n
char(size)<\/td>\n\u5bb9\u7eb3\u56fa\u5b9a\u957f\u5ea6\u7684\u5b57\u7b26\u4e32\uff08\u53ef\u5bb9\u7eb3\u5b57\u6bcd\u3001\u6570\u5b57\u4ee5\u53ca\u7279\u6b8a\u5b57\u7b26\uff09\u3002\u5728\u62ec\u53f7\u4e2d\u89c4\u5b9a\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002<\/td>\n<\/tr>\n
varchar(size)<\/td>\n\u5bb9\u7eb3\u53ef\u53d8\u957f\u5ea6\u7684\u5b57\u7b26\u4e32\uff08\u53ef\u5bb9\u7eb3\u5b57\u6bcd\u3001\u6570\u5b57\u4ee5\u53ca\u7279\u6b8a\u7684\u5b57\u7b26\uff09\u3002\u5728\u62ec\u53f7\u4e2d\u89c4\u5b9a\u5b57\u7b26\u4e32\u7684\u6700\u5927\u957f\u5ea6\u3002<\/td>\n<\/tr>\n
date(yyyymmdd)<\/td>\n\u5bb9\u7eb3\u65e5\u671f\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u5220\u9664\u64cd\u4f5c<\/h3>\n
\u901a\u8fc7\u4f7f\u7528 DROP \u8bed\u53e5\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u5220\u9664\u7d22\u5f15\u3001\u8868\u548c\u6570\u636e\u5e93\u3002<\/p>\n
\u5220\u9664\u6570\u636e\u5e93<\/h4>\n
DROP DATABASE \u8bed\u53e5\u7528\u4e8e\u5220\u9664\u6570\u636e\u5e93\uff1a<\/p>\n
DROP DATABASE \u6570\u636e\u5e93\u540d\u79f0<\/code><\/pre>\n
\u5220\u9664\u6570\u636e\u8868<\/h4>\n
DROP TABLE \u8bed\u53e5\u7528\u4e8e\u5220\u9664\u8868\uff08\u8868\u7684\u7ed3\u6784\u3001\u5c5e\u6027\u4ee5\u53ca\u7d22\u5f15\u4e5f\u4f1a\u88ab\u5220\u9664\uff09\uff1a<\/p>\n
DROP TABLE \u6570\u636e\u5e93\u540d\u79f0<\/code><\/pre>\n
TRUNCATE TABLE \u547d\u4ee4\uff08\u4ec5\u4ec5\u5220\u9664\u8868\u683c\u4e2d\u7684\u6570\u636e\uff09\uff1a<\/p>\n
TRUNCATE TABLE \u8868\u540d\u79f0<\/code><\/pre>\n
\u5220\u9664\u7d22\u5f15<\/h4>\n
DROP INDEX \u547d\u4ee4\u5220\u9664\u8868\u683c\u4e2d\u7684\u7d22\u5f15\u3002
\n\u8fd9\u4e2a\u5728\u6559\u7a0b\u4e2d\u5217\u793a\u4e86\u4e0d\u540c\u6570\u636e\u5e93\u7684\u7528\u6cd5
\n\u7528\u4e8e Microsoft SQLJet (\u4ee5\u53ca Microsoft Access) \u7684\u8bed\u6cd5:<\/p>\n
DROP INDEX index_name ON table_name<\/code><\/pre>\n
\u7528\u4e8e MS SQL Server \u7684\u8bed\u6cd5:<\/p>\n
DROP INDEX table_name.index_name<\/code><\/pre>\n
\u7528\u4e8e IBM DB2 \u548c Oracle \u8bed\u6cd5:<\/p>\n
DROP INDEX index_name<\/code><\/pre>\n
\u7528\u4e8e MySQL \u7684\u8bed\u6cd5:<\/p>\n
ALTER TABLE table_name DROP INDEX index_name<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u56fe\u5f62\u754c\u9762\u7684\u7ba1\u7406\u65b9\u5f0f \u7f51\u7ad9\u6570\u636e\u5e93phpmyadmin\uff0c\u684c\u9762\u5ba2\u6237\u7aefaccess\uff0csqlserver\u7684\u7ba1\u7406\u5de5\u5177\uff0cMy […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38,57],"tags":[],"_links":{"self":[{"href":"http:\/\/www.henrycome.com\/wordpress\/wp-json\/wp\/v2\/posts\/1008"}],"collection":[{"href":"http:\/\/www.henrycome.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.henrycome.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.henrycome.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.henrycome.com\/wordpress\/wp-json\/wp\/v2\/comments?post=1008"}],"version-history":[{"count":2,"href":"http:\/\/www.henrycome.com\/wordpress\/wp-json\/wp\/v2\/posts\/1008\/revisions"}],"predecessor-version":[{"id":1010,"href":"http:\/\/www.henrycome.com\/wordpress\/wp-json\/wp\/v2\/posts\/1008\/revisions\/1010"}],"wp:attachment":[{"href":"http:\/\/www.henrycome.com\/wordpress\/wp-json\/wp\/v2\/media?parent=1008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.henrycome.com\/wordpress\/wp-json\/wp\/v2\/categories?post=1008"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.henrycome.com\/wordpress\/wp-json\/wp\/v2\/tags?post=1008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}