在所有数据库中搜索价值 [英] Search all databases for value
问题描述
考虑有一个名为的表:人
Consider have a table like named : People
| Id | Name | Code |
| 1 | John | 857 |
| 2 | Mike | 893 |
| 3 | Sara | 935 |
此表位于PeopleDb数据库中
This table is in PeopleDb Database
现在,我想找到 Mike关键字。情况:
Now I want to find 'Mike' keyword. Situation :
-
我不知道要搜索哪个数据库,表。
我需要一个查询所有数据库和表的查询,并向我显示以下内容:
I need a query that searches in all databases and tables and shows me this :
| Id | DatabaseName | TableName | ColumnName | Pk | SearchValue
| 1 | 'PeopleDb' | 'People' | 'Name' | 2 | 'Mike'
我不知道如何编写查询来搜索所有数据库和表。
I don't know how to write the query to search in all databases and tables.
任何帮助将不胜感激。
编辑:
这里的速度不是问题,我需要这样做。
Speed is not an issue here and I need to do this.
我尝试了此查询,但我希望保持不变,但是会搜索所有数据库。
I tried this query, I want the same but that searches all databases.
CREATE PROC SearchAllTables
(
@SearchStr nvarchar(100)
)
AS
BEGIN
-- Copyright © 2002 Narayana Vyas Kondreddi.All rights reserved.
-- Purpose: To search all columns of all tables for a given search string
-- Written by: Narayana Vyas Kondreddi
-- Site: http://vyaskn.tripod.com
-- Tested on: SQL Server 7.0 and SQL Server 2000
-- Date modified: 28th July 2002 22:50 GMT
DECLARE @Results TABLE(ColumnName nvarchar(370), ColumnValue nvarchar(3630))
SET NOCOUNT ON
DECLARE @TableName nvarchar(256), @ColumnName nvarchar(128), @SearchStr2 nvarchar(110)
SET @TableName = ''
SET @SearchStr2 = QUOTENAME('%' + @SearchStr + '%', '''')
WHILE @TableName IS NOT NULL
BEGIN
SET @ColumnName = ''
SET @TableName =
(
SELECT MIN(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME))
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE'
AND QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) > @TableName
AND OBJECTPROPERTY(
OBJECT_ID(
QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)
), 'IsMSShipped'
) = 0
)
WHILE(@TableName IS NOT NULL) AND(@ColumnName IS NOT NULL)
BEGIN
SET @ColumnName =
(
SELECT MIN(QUOTENAME(COLUMN_NAME))
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = PARSENAME(@TableName, 2)
AND TABLE_NAME = PARSENAME(@TableName, 1)
AND DATA_TYPE IN ('char', 'varchar', 'nchar', 'nvarchar')
AND QUOTENAME(COLUMN_NAME) > @ColumnName
)
IF @ColumnName IS NOT NULL
BEGIN
INSERT INTO @Results
EXEC
(
'SELECT ''' + @TableName + '.' + @ColumnName + ''', LEFT(' + @ColumnName + ', 3630)
FROM ' + @TableName + ' (NOLOCK) ' +
' WHERE ' + @ColumnName + ' LIKE ' + @SearchStr2
)
END
END
END
SELECT ColumnName, ColumnValue FROM @Results
END
更新:
Update :
我需要一个工作的T-Sql,它可以搜索所有数据库,表,列,所有类型的变量。
当前答案在某些情况下不起作用,例如nvarchar字段中的连接字符串。
I need a working T-Sql that searches all databases, tables, columns, all type of variables.
Current answers will not work in some situations like Connection String in nvarchar field.
推荐答案
我已经按照下面的方法更新了您的逻辑,它运行正常,请看一下:
I have updated your Logic as per below and it works fine, please have a look:
DECLARE @SearchStr VARCHAR(50)='Surat'
DECLARE @Results TABLE(DatabaseName NVARCHAR(500), TableName nvarchar(370),ColumnName nvarchar(370), ColumnValue nvarchar(3630),PrimaryKey nvarchar(200), PrimaryKeyValue nvarchar(4000))
SET NOCOUNT ON
DECLARE @TableList AS Table
(
TableName VARCHAR(500),
RowNo INT
)
DECLARE @ColumnList AS Table
(
ColumnName VARCHAR(500),
RowNo INT
)
DECLARE @PrimaryKeyList AS Table
(
PrimaryKeyName VARCHAR(500)
)
DECLARE @TableName nvarchar(256), @ColumnName nvarchar(128), @SearchStr2 nvarchar(110), @PrimaryKey nvarchar(200), @CurrentTableName nvarchar(256)
SET @TableName = ''
SET @SearchStr2 = QUOTENAME('%' + @SearchStr + '%', '''')
DECLARE @DatabaseCount INT=0, @Index INT=0, @DatabaseName NVARCHAR(500), @TotalColumnCount INT, @ColumnIndex INT=0, @TotalTableCount INT, @TableIndex INT=0
SELECT
*,
ROW_NUMBER() OVER (ORDER BY name) AS RowNo
INTO #tblDatabases
FROM Sys.Databases
WHERE name NOT IN ('master','model','msdb','tempdb')
SELECT @DatabaseCount=COUNT (*) FROM #tblDatabases
WHILE @Index<@DatabaseCount
BEGIN
SET @Index=@Index+1
SELECT @DatabaseName='',@TableIndex=0,@ColumnIndex=0,@TableName='',@ColumnName=''
SELECT @DatabaseName=name FROM #tblDatabases WHERE RowNo=@Index
DELETE FROM @TableList
INSERT INTO @TableList
EXEC('
SELECT QUOTENAME(TABLE_SCHEMA) + ''.'' + QUOTENAME(TABLE_NAME),
ROW_NUMBER() OVER (ORDER BY TABLE_NAME)
FROM ['+@DatabaseName+'].INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = ''BASE TABLE''
')
SELECT @TotalTableCount=COUNT(*) FROM @TableList
WHILE @TableIndex<@TotalTableCount
BEGIN
SET @TableIndex=@TableIndex+1
SELECT @ColumnName = '',@ColumnIndex=0
SELECT @TableName=TableName FROM @TableList WHERE RowNo=@TableIndex
SET @CurrentTableName=REPLACE(REPLACE(REPLACE(@TableName,'[dbo].',''),'[',''),']','')
DELETE FROM @ColumnList
INSERT INTO @ColumnList
EXEC('SELECT
COLUMN_NAME,ROW_NUMBER() OVER (ORDER BY COLUMN_NAME)
FROM ['+@DatabaseName+'].INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = PARSENAME('''+@TableName+''', 2)
AND TABLE_NAME = PARSENAME('''+@TableName+''', 1)
AND DATA_TYPE IN (''char'', ''varchar'', ''nchar'', ''nvarchar'')
')
SELECT @TotalColumnCount=COUNT(*) FROM @ColumnList
WHILE @ColumnIndex<@TotalColumnCount
BEGIN
SET @ColumnIndex=@ColumnIndex+1
SET @ColumnName=''
SELECT @ColumnName=ColumnName FROM @ColumnList WHERE RowNo=@ColumnIndex
DELETE FROM @PrimaryKeyList
INSERT INTO @PrimaryKeyList
EXEC('
SELECT Col.Column_Name from
['+@DatabaseName+'].INFORMATION_SCHEMA.TABLE_CONSTRAINTS Tab,
['+@DatabaseName+'].INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE Col
WHERE
Col.Constraint_Name = Tab.Constraint_Name
AND Col.Table_Name = Tab.Table_Name
AND Constraint_Type = ''PRIMARY KEY''
AND Col.Table_Name= '''+@CurrentTableName+'''
')
SELECT @PrimaryKey=''
SELECT @PrimaryKey=PrimaryKeyName FROM @PrimaryKeyList
SET @PrimaryKey=ISNULL(@PrimaryKey,'')
IF @ColumnName IS NOT NULL AND @PrimaryKey<>''
BEGIN
INSERT INTO @Results
EXEC
(
'SELECT '''+@DatabaseName+''','''+@CurrentTableName+''',''' + @ColumnName + ''', LEFT(' + @ColumnName + ', 3630) , '''+@PrimaryKey+''', [' + @PrimaryKey + ']
FROM ['+@DatabaseName+'].' + @TableName + ' (NOLOCK) ' +
' WHERE ' + @ColumnName + ' LIKE ' + @SearchStr2
)
END
END
END
END
SELECT ROW_NUMBER() OVER (ORDER BY DatabaseName) AS Id,DatabaseName,TableName,ColumnName, ColumnValue AS SearchValue,PrimaryKeyValue AS Pk, PrimaryKey FROM @Results
DROP TABLE #tblDatabases
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