① sql2017如何導出數據表
通過自帶的導出
通過navicat工具連接上後導出
② 如何查看並導出SQLSERVER數據表中欄位的注釋信息
sysobjects是系統對象表,syscolumns是系統欄位信息表,systypes是系統類型表。通過欄位的ID和sysproperties(系統注釋屬性表)關聯,即可讀出注釋信息。
③ 怎麼導出 sql 表裡所有數據
cmd打開 c:\>mysqlmp -h localhost -u root -p mydb >e:\mysql\mydb.sql然後輸入密碼,等待一會導出就成功了,可以到目標文件中檢查是否成功。2.將資料庫mydb中的mytable導出到e:\mysql\mytable.sql文件中:c:\>mysqlmp -h localhost -u root -p mydb mytable>e:\mysql\mytable.sql
④ 怎麼導出sql所有用戶表的欄位信息
請使用這樣一條Sql語句,試試吧!
SELECT
(case when a.colorder=1 then d.name else '' end)表名,
a.colorder 欄位序號,
a.name 欄位名,
(case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end) 標識,
(case when (SELECT count(*)
FROM sysobjects
WHERE (name in
(SELECT name
FROM sysindexes
WHERE (id = a.id) AND (indid in
(SELECT indid
FROM sysindexkeys
WHERE (id = a.id) AND (colid in
(SELECT colid
FROM syscolumns
WHERE (id = a.id) AND (name = a.name))))))) AND
(xtype = 'PK'))>0 then '√' else '' end) 主鍵,
b.name 類型,
a.length 佔用位元組數,
COLUMNPROPERTY(a.id,a.name,'PRECISION') as 長度,
isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0) as 小數位數,
(case when a.isnullable=1 then '√'else '' end) 允許空,
isnull(e.text,'') 默認值,
isnull(g.[value],'') AS 欄位說明
FROM syscolumns a left join systypes b
on a.xtype=b.xusertype
inner join sysobjects d
on a.id=d.id and d.xtype='U' and d.name<>'dtproperties'
left join syscomments e
on a.cdefault=e.id
left join sysproperties g
on a.id=g.id AND a.colid = g.smallid
order by a.id,a.colorder
⑤ 怎麼將sql資料庫表裡的信息 導成sql語句
我用的是2008,選中資料庫_任務(右鍵)_生成腳本(右鍵).截圖附上,不明白的可以直接hi我.其他的版本也是大同小異的.
⑥ 如何SQL語句導出資料庫里的所有表(SQL2012)
新建一個備份庫,將bak文件還原
然後excel中直接連接資料庫
⑦ sql怎樣導出一個表裡部分數據
現有員工表A一張 ,要求抽取員工表中年紀小於25的數據單獨存於B表
A表結構:
id、name、age
sql語法:
create table B as select id,name,age from A where age<25
不知是不是你要的效果!
⑧ 怎麼導出SQL所有用戶表的欄位信息
請使用這樣一條Sql語句,試試吧! SELECT (case when a.colorder=1 then d.name else '' end)表名, a.colorder 欄位序號, a.name 欄位名, (case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end) 標識, (case when (SELECT count(*) FROM sysobjects WHERE (name in (SELECT name FROM sysindexes WHERE (id = a.id) AND (indid in (SELECT indid FROM sysindexkeys WHERE (id = a.id) AND (colid in (SELECT colid FROM syscolumns WHERE (id = a.id) AND (name = a.name))))))) AND (xtype = 'PK'))>0 then '√' else '' end) 主鍵, b.name 類型, a.length 佔用位元組數, COLUMNPROPERTY(a.id,a.name,'PRECISION') as 長度, isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0) as 小數位數, (case when a.isnullable=1 then '√'else '' end) 允許空, isnull(e.text,'') 默認值, isnull(g.[value],'') AS 欄位說明 FROM syscolumns a left join systypes b on a.xtype=b.xusertypeinner join sysobjects d on a.id=d.id and d.xtype='U' and d.name'dtproperties'left join syscomments eon a.cdefault=e.idleft join sysproperties gon a.id=g.id AND a.colid = g.smallid order by a.id,a.colorder
⑨ SQL導出表數據:通過寫什麼命令可以把SQL裡面查詢到的表數據導出到txt或者Excel當中
循環列名,然後用寫入(追加)到txt中。