表，字段，值的查詢（持續更新）

--給出某個字段，查詢該字段在哪些表和視圖中

SELECT 
OBJECT_NAME(object_id) AS ObjName,*
FROM sys.columns 
WHERE name='AccountId'

--注：OBJECT_NAME是MSSQL內置函數，其作用是：返回架構範圍內對象的數據庫對象名稱

--給出謀個字段，查詢該字段屬於哪些表

SELECT a.*
FROM sysobjects a ,syscolumns b
WHERE a.id=b.id AND a.type='U' AND b.name='AccountId'

--給出字段值，查出該值屬於哪些表的哪個字段

給出值"294374c2-d246-47fc-9178-59eb1c1bf916",要求查詢出該值所在的表名，字段名，數據庫名.

--用遊標遍歷
declare @sql varchar(8000)  
set @sql='294374c2-d246-47fc-9178-59eb1c1bf916' --要搜索的字符串   
declare tablecursor cursor local for 
select sql='if exists ( select 1 from ['+ s.name + '].['+o.name+'] where ['+c.name+'] like ''%'+@sql+'%'' ) 
print ''所在的表及字段：['+o.name+'].['+c.name+']'''  
from sys.syscolumns c 
join sys.objects o on c.id=o.object_id   
join sys.schemas s on o.schema_id = s.schema_id 
where s.name != 'sys' and  o.type='u' and c.status>=0 and c.xusertype in (167,175, 239, 231)
open tablecursor      
fetch next from tablecursor into @sql  
while @@fetch_status=0  
begin   
	exec( @sql )   
	fetch next from tablecursor into @sql 
end      
close tablecursor   
deallocate tablecursor  

--查找當前庫中，所有表中的索引名稱和屬於哪個表

SELECT 
TableId=O.[object_id],
TableName=O.Name,
IndexId=ISNULL(KC.[object_id],IDX.index_id),
IndexName=IDX.Name,
IndexType=ISNULL(KC.type_desc,'Index'),
Index_Column_id=IDXC.index_column_id,
ColumnID=C.Column_id,
ColumnName=C.Name,
Sort=CASE INDEXKEY_PROPERTY(IDXC.[object_id],IDXC.index_id,IDXC.index_column_id,'IsDescending')
WHEN 1 THEN 'DESC' WHEN 0 THEN 'ASC' ELSE '' END,
PrimaryKey=CASE WHEN IDX.is_primary_key=1 THEN N'√'ELSE N'' END,
[UQIQUE]=CASE WHEN IDX.is_unique=1 THEN N'√'ELSE N'' END,
Ignore_dup_key=CASE WHEN IDX.ignore_dup_key=1 THEN N'√'ELSE N'' END,
Disabled=CASE WHEN IDX.is_disabled=1 THEN N'√'ELSE N'' END,
Fill_factor=IDX.fill_factor,
Padded=CASE WHEN IDX.is_padded=1 THEN N'√'ELSE N'' END
FROM sys.indexes IDX
INNER JOIN sys.index_columns IDXC
ON IDX.[object_id]=IDXC.[object_id]
AND IDX.index_id=IDXC.index_id
LEFT JOIN sys.key_constraints KC
ON IDX.[object_id]=KC.[parent_object_id]
AND IDX.index_id=KC.unique_index_id
INNER JOIN sys.objects O
ON O.[object_id]=IDX.[object_id]
INNER JOIN sys.columns C
ON O.[object_id]=C.[object_id]
AND O.type='U'
AND O.is_ms_shipped=0
AND IDXC.Column_id=C.Column_id