自己尝试搜索，但找不到任何东西。如果我要查找包含列 CarId 的所有表并且我只对 ID 1 感兴趣，我如何才能获得符合此条件的所有表的列表？这是使用 Transact SQL。
select
'select '+quotename(t.[name],'''')+' as [table],* from '+t.[name]+' where CarID=1'
from sys.tables t
inner join sys.columns c on c.object_id=t.object_id
where c.name='CarID'
运行它，将结果复制粘贴到一个新的查询窗口中，运行 em
你可以使用动态 sql 做这样的事情：
USE DATABASE_NAME -- your database name
--variables
DECLARE
@SQL NVARCHAR(MAX),
@CRLF NVARCHAR(2) = CHAR(13) + CHAR(10)
--generate your sql
SELECT
@SQL = COALESCE(@SQL, @CRLF)
+ 'SELECT '''
+ TABLE_NAME + ''' AS TABLE_NAME '
+ 'FROM '
+ TABLE_SCHEMA + '.' + TABLE_NAME
+ 'WHERE '
+ 'CarID = 1 ' + @CRLF
+ 'UNION '
FROM
INFORMATION_SCHEMA.COLUMNS
WHERE
COLUMN_NAME = N'CarID'
--remove the last union
SET @SQL = LEFT(@SQL, LEN(@SQL) - 6)
--preview the generated sql
PRINT @SQL
--execute
--EXEC (@SQL)
这里我们使用 INFORMATION_SCHEMA.COLUMNS 来识别包含您想要的特定列的所有表。
使用它，然后我们生成一个 sql 查询以仅返回找到
CarID = 1您可以预览查询（在 PRINT @SQL 上）并单独执行，或者您可以取消注释 EXEC (@SQL) 以一起运行。
***即使你有 cardid=1 多行表名也将被选择一次。
样品表
-- Create first table
CREATE TABLE Table1 (
Id INT PRIMARY KEY,
Name VARCHAR(50),
CardId INT
);
INSERT INTO Table1 (Id, Name, CardId)
VALUES
(1, 'John', 1),
(2, 'Jane', 2),
(3, 'Bob', 1);
-- Create second table
CREATE TABLE Table2 (
Id INT PRIMARY KEY,
Address VARCHAR(100),
CardId INT
);
INSERT INTO Table2 (Id, Address, CardId)
VALUES
(1, '123 Main St.', 2),
(2, '456 Elm St.', 1),
(3, '789 Oak St.', 3);
-- Create third table
CREATE TABLE Table3 (
Id INT PRIMARY KEY,
Email VARCHAR(50),
Phone VARCHAR(20),
CardId INT
);
INSERT INTO Table3 (Id, Email, Phone, CardId)
VALUES
(1, '[email protected]', '555-1234', 1),
(2, '[email protected]', '555-5678', 2),
(3, '[email protected]', '555-9012', 1);
查询：
enter code here
DECLARE @SearchColumn NVARCHAR(255) = 'CardId';
DECLARE @SearchValue INT = 1;
DECLARE @SQL NVARCHAR(MAX);
SET @SQL = (
SELECT top 1 string_agg('SELECT top 1''' + TABLE_NAME + ''' AS TableName
FROM ' + TABLE_NAME + '
WHERE ' + @SearchColumn + ' = ' + CAST(@SearchValue AS NVARCHAR(255)) + ' ',' union all ')
FROM INFORMATION_SCHEMA.COLUMNS
WHERE COLUMN_NAME = @SearchColumn
);
EXEC sp_executesql @sql
输出：
| 表名 |
|---|
| 表1 |
| 表2 |
| 表 3 |
仅列出表名
DECLARE @ColumnName nvarchar(100) ='CarId'
DECLARE @ID int=2
create table #listTable (tableName varchar(100))
declare @sql nvarchar(max)= 'insert into #listTable SELECT ''?'' FROM ? WHERE '+@ColumnName +'='''+cast(@ID as varchar(100))+''''
declare @whereand nvarchar(max)='AND O.ID IN (SELECT OBJECT_ID FROM SYS.COLUMNS C WHERE C.NAME='''+@ColumnName+''')'
EXEC sp_MSforeachtable @command1=@sql,@whereand=@whereand
select * from #listTable
所有记录
--USE [DataBase]
DECLARE @ColumnName nvarchar(100) ='CarId'
DECLARE @ID int=2
declare @sql nvarchar(max)= ' SELECT * FROM ? WHERE '+@ColumnName +'='''+cast(@ID as varchar(100))+''''
declare @whereand nvarchar(max)='AND O.ID IN (SELECT OBJECT_ID FROM SYS.COLUMNS C WHERE C.NAME='''+@ColumnName+''')'
EXEC sp_MSforeachtable @command1=@sql,@whereand=@whereand
我有一个我写的定制程序可以为你做这件事。
它旨在搜索可以在任何数据库的任何表的任何列中的文本，它的一个选项允许您传递一个术语列表以匹配（或排除）列名。
这是一个系统过程，您在master数据库中创建它并将其注册为系统过程，然后您可以在任何数据库上下文中使用它。
对于您的具体情况，您可以这样使用它：
exec sp_FindTextInAnyTable @Find = '1', @CnameList = 'CarId', @SearchNumbers = 1;
它返回找到搜索参数的表列表，包含它的列和一些您可以剪切和粘贴以查找包含搜索数据的行的 SQL。
完整代码如下。在
masterexec sys.sp_MS_marksystemobject dbo.sp_FindTextInAnyTable;有许多定制可以限制搜索，有些是根据我们使用它的环境定制的，例如可选的包括具有假设的history模式等的临时表，参数记录在下面的代码中。
请尝试一下，让我知道它是否适合您？
Create procedure sp_FindTextInAnyTable
@Find nvarchar(100), /* Like predicate - supply wildcards in the value */
@SearchNumbers tinyint = 0, /* If searching for numbers: 0 = look at text type columns only 1 = look at numeric type columns only, 2 = look at all types */
@Schema sysname = null, /* search only tables in a specific schema or NULL for all schemas */
@IncludeMax bit = 0, /* Set to 1 to include varchar(max) columns, by default these are excluded */
@IncludeHistory bit = 0, /* Set to 1 to include history tables, by default these are excluded */
@IncludeAudit bit = 0, /* Set to 1 to include CreatedBy / AlteredBy columns, by default these are excluded */
@MaxTables int = -1, /* Set the maximum number of tables to search, set to -1 for no limit (be careful and only run on a replica in production) */
@TnameList varchar(200) = null, /* Comma-delimited list of words to match with table names to search or NULL to search all tables; prefix the list with ~ to exclude tables instead */
@CnameList varchar(200) = null, /* Comma-delimited list of words to match with column names to search or NULL to search all columns; prefix the list with ~ to exclude columns instead (except audit columns) */
@RowLimit bigint = 100000, /* Default max size of table in rows - prevents hitting large tables unless required, ignored if specific list of tables used */
@Refresh bit = 0, /* Set to 1 to have existing search re-evaluated, otherwise data is returned from last search result */
@Debug bit = 0
as
set nocount, xact_abort on;
/*
Run this in the context of any database to search within every CHAR or VARCHAR column and optionally NUMERIC columns in every table in the database for the specified text to find.
If the text exists in any row it returns the column and table containing the text and
the specific sql to run to find the text in the table.
example usage
exec sp_FindTextInAnyTable @Find = 'black'; /* Find any table with specific value "black" in any column, excludes any history tables, audit columns and varchar(max) columns, limits to first 50 tables */
exec sp_FindTextInAnyTable @Find = '%spoke%'; /* Find the text "spoke" within text any column in any table */
exec sp_FindTextInAnyTable @Find = '%sys%', @IncludeAudit = 1; /* Find within any column in any table, include searching within createdby/alteredby columns */
exec sp_FindTextInAnyTable @Find = '%sys%', @Refresh = 1; /* Repeat a previous search and check all tables again instead of returning cached results */
exec sp_FindTextInAnyTable @Find = '%scot%', @TnameList = 'file, log', @Refresh = 1; /*Find any column containing the text in only in tables with "file" or "log" in its name */
exec sp_FindTextInAnyTable @Find = '%scot%', @TnameList = 'file, log', @IncludeHistory = 1, @Refresh = 1; /* Repeat the above search but also search in History tables */
exec sp_FindTextInAnyTable @Find = '%scot%', @Refresh = 1, @Schema = 'history' /* Only search the History tables */
exec sp_FindTextInAnyTable @Find = '%scot%', @TnameList = '~file, log',@Refresh = 1; /* Search all tables except those with file or log in the name */
*/
declare @sql nvarchar(max), @br varchar(2) = Iif(@Debug = 1, Char(13), ''), @Valid bit = 0,
@TExclude bit = (Iif(@TnameList like '~%', 1, 0)), @CExclude bit = (Iif(@CnameList like '~%', 1, 0));
declare @Union varchar(20) = Concat(' union all ', @br);
declare @TNames table(tname sysname);
declare @CNames table(cname sysname);
insert into @TNames(tname)
select Trim([value])
from String_Split(Replace(@TnameList, '~',''), ',');
insert into @CNames(cname)
select Trim([value])
from String_Split(Replace(@CnameList, '~',''), ',');
if Object_Id('master.dbo.sp_FindTextInAnyTableResults') is null
begin;
create table master.dbo.sp_FindTextInAnyTableResults(
DBId int not null,
Find nvarchar(100) not null,
Tname sysname not null,
Cname sysname not null,
Row_Count bigint not null,
Datatype varchar(50), [SQL] varchar(max) not null,
CreateDate datetime2(0) not null default(GetDate()),
Id int identity
);
alter table dbo.sp_FindTextInAnyTableResults add constraint [PK_sp_FindTextInAnyTableResults] primary key clustered (DBId, Find, Id) with (fillfactor = 100) on [PRIMARY];
end;
if @Refresh = 1 or @Debug = 1 or not exists (select * from master.dbo.sp_FindTextInAnyTableResults where DBId = Db_Id() and Find = @Find)
begin
delete from master.dbo.sp_FindTextInAnyTableResults where DBId = Db_Id() and Find = @Find;
with TList as (
select Concat_Ws('.', QuoteName(Schema_Name(t.schema_id)),
QuoteName(t.[name])) TName,
c.[name] CName,
dt.[name] DTName,
dt.system_type_id,
c.max_length,
c.precision, c.scale,
Dense_Rank() over(order by t.[name]) Tcount,
p.row_count
from sys.columns c
join sys.dm_db_partition_stats p on p.object_id = c.object_id and p.index_id < 2 and p.row_count > 0
join sys.tables t on t.object_id = c.object_id and (@Schema is null or t.schema_id = Schema_Id(@Schema)) and Schema_Name(t.schema_id) != 'datasync'
join sys.types dt on dt.user_type_id = c.user_type_id
where (
(dt.system_type_id in (167,175,231,239) and (@SearchNumbers in (0,2) or (Try_Convert(int, @Find) is null and Try_Convert(decimal, @Find) is null and Try_Convert(money, @Find) is null)))
or (@SearchNumbers > 0 and Try_Convert(int, @Find) is not null and (dt.[name] like '%int%') )
or (@SearchNumbers > 0 and Try_Convert(decimal, @Find) is not null and (dt.[name] like '%decimal%' or dt.[name] like '%numeric%' or dt.[name] like '%real%' or dt.[name] like '%float%') )
or (@SearchNumbers > 0 and Try_Convert(money, @Find) is not null and (dt.[name] like '%money%') )
)
and (@IncludeHistory = 1 or Schema_Name(t.schema_id) != 'History' or @Schema = 'History')
and (c.max_length >= Len(@Find) or (c.max_length = -1 and @IncludeMax = 1) or (dt.[name] not like '%char%'))
and (@IncludeAudit = 1 or not (c.[name] = 'createdby' or c.[name] = 'alteredby'))
and (@TnameList is null or (
(@TExclude = 0 and exists (select * from @TNames where CharIndex(tname, t.[name]) > 0)) or
(@TExclude = 1 and not exists (select * from @TNames where CharIndex(tname, t.[name]) > 0))
)
)
and (@CnameList is null or (
(@CExclude = 0 and exists (select * from @CNames where CharIndex(cname, c.[name]) > 0)) or
(@CExclude = 1 and not exists (select * from @CNames where CharIndex(cname, c.[name]) > 0))
)
)
and (@RowLimit = -1 or (@TnameList is not null and @TExclude = 0) or p.row_count <= @RowLimit)
and c.is_computed = 0 and c.is_hidden = 0
)
/*select * from tlist order by 1,2 end;*/
select @sql =
Concat(
'insert into master.dbo.sp_FindTextInAnyTableResults(DBId, Find, Tname, Cname, Row_Count, DataType, [SQL])',
@br,
String_Agg([sql], @Union)
),
@Valid = IsNull(Max(Iif([sql] is not null, 1, 0)), 0)
from (
select Convert(varchar(max),
Concat(
'select top(1) db_id(), '
, '''', @Find, ''''
, ', ''', TName, ''''
, ', ''', CName, ''''
, ', ', row_count
, ', DataType = ',
Concat(
''''
, DTName
, case when system_type_id in (167,175,231,239) then Iif(max_length = -1, '(max)', Concat('(', max_length, ')')) end
, case when DTName like '%decimal%' or DTName like '%numeric%' or DTName like '%real%' or DTName like '%float%' then '(' + Concat_Ws(',', precision, scale) + ')' end
, ''''
)
, ', SqlToRun = ',
Concat(''''
, 'Select * from '
, QuoteName(Db_Name()), '.', TName
, ' where '
, case when system_type_id in (167,175,231,239) then QuoteName(CName) else Concat('try_convert(varchar(50), ', QuoteName(CName), ')') end
, ' like ', ''''''
, case when system_type_id in (167,175,231,239) then @Find else Concat('%', @Find, '%') end
, '''''', ''''
)
, ' from ', TName
, ' where ', case when system_type_id in (167,175,231,239) then QuoteName(CName) else Concat('try_convert(varchar(50), ', QuoteName(CName), ')') end
, ' like '''
, case when system_type_id in (167,175,231,239) then @Find else Concat('%', @Find, '%') end,
'''')
)[sql]
from TList
where @MaxTables = -1
or Tcount <= @MaxTables
or @TnameList is not null
)[sql];
if @Debug = 1
begin
select @sql;
print @sql;
end
else
if @Valid = 1 exec (@sql);
end
select Concat(
'Found in table '
, Tname
, ', Rows = ', Max(Row_Count)
, ', Column', Iif(Count(*) > 1, 's', ''), ': '
, String_Agg(Concat_Ws(' ', Cname, Datatype), ', ')
) FoundIn,
String_Agg([SQL], ';' + Char(13)) + ';' [SQL]
from master.dbo.sp_FindTextInAnyTableResults
where DBId = Db_Id() and Find = @Find
group by Tname
order by Tname;
GO