Search all databases for value

Question

Consider have a table like named : People

| Id    | Name    | Code   |
| 1     | John    | 857    |
| 2     | Mike    | 893    |
| 3     | Sara          


        

Answer 1

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