sp_generate_inserts page 2

SET NOCOUNT ON



–Making sure user only uses either @cols_to_include or @cols_to_exclude

IF ((@cols_to_include IS NOT NULL) AND (@cols_to_exclude IS NOT NULL))

    BEGIN

        RAISERROR(‘Use either @cols_to_include or @cols_to_exclude. Do not use both the parameters at once’,16,1)

        RETURN -1 –Failure. Reason: Both @cols_to_include and @cols_to_exclude parameters are specified

    END



–Making sure the @cols_to_include and @cols_to_exclude parameters are receiving values in proper format

IF ((@cols_to_include IS NOT NULL) AND (PATINDEX(”’%”’,@cols_to_include) = 0))

    BEGIN

        RAISERROR(‘Invalid use of @cols_to_include property’,16,1)

        PRINT ‘Specify column names surrounded by single quotes and separated by commas’

        PRINT ‘Eg: EXEC sp_generate_inserts titles, @cols_to_include = "”title_id”,”title”"’

        RETURN -1 –Failure. Reason: Invalid use of @cols_to_include property

    END



IF ((@cols_to_exclude IS NOT NULL) AND (PATINDEX(”’%”’,@cols_to_exclude) = 0))

    BEGIN

        RAISERROR(‘Invalid use of @cols_to_exclude property’,16,1)

        PRINT ‘Specify column names surrounded by single quotes and separated by commas’

        PRINT ‘Eg: EXEC sp_generate_inserts titles, @cols_to_exclude = "”title_id”,”title”"’

        RETURN -1 –Failure. Reason: Invalid use of @cols_to_exclude property

    END





–Checking to see if the database name is specified along wih the table name

–Your database context should be local to the table for which you want to generate INSERT statements

–specifying the database name is not allowed

IF (PARSENAME(@table_name,3)) IS NOT NULL

    BEGIN

        RAISERROR(‘Do not specify the database name. Be in the required database and just specify the table name.’,16,1)

        RETURN -1 –Failure. Reason: Database name is specified along with the table name, which is not allowed

    END



–Checking for the existence of ‘user table’ or ‘view’

–This procedure is not written to work on system tables

–To script the data in system tables, just create a view on the system tables and script the view instead



IF @owner IS NULL

    BEGIN

        IF ((OBJECT_ID(@table_name,’U’) IS NULL) AND (OBJECT_ID(@table_name,’V’) IS NULL))

            BEGIN

                RAISERROR(‘User table or view not found.’,16,1)

                PRINT ‘You may
see this error, if you are not the owner of this table or view. In that
case use @owner parameter to specify the owner name.’


                PRINT ‘Make sure you have SELECT permission on that table or view.’

                RETURN -1 –Failure. Reason: There is no user table or view with this name

            END

    END

ELSE

    BEGIN

        IF NOT EXISTS (SELECT 1
FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = @table_name AND
(TABLE_TYPE = ‘BASE TABLE’ OR TABLE_TYPE = ‘VIEW’) AND TABLE_SCHEMA =
@owner)


            BEGIN

                RAISERROR(‘User table or view not found.’,16,1)

                PRINT ‘You may
see this error, if you are not the owner of this table. In that case
use @owner parameter to specify the owner name.’


                PRINT ‘Make sure you have SELECT permission on that table or view.’

                RETURN -1 –Failure. Reason: There is no user table or view with this name       

            END

    END



–Variable declarations

DECLARE        @Column_ID int,        

        @Column_List varchar(8000),

        @Column_Name varchar(128),

        @Start_Insert varchar(786),

        @Data_Type varchar(128),

        @Actual_Values varchar(8000),    –This is the string that will be finally executed to generate INSERT statements

        @IDN varchar(128)        –Will contain the IDENTITY column’s name in the table



–Variable Initialization

SET @IDN = ”

SET @Column_ID = 0

SET @Column_Name = ”

SET @Column_List = ”

SET @Actual_Values = ”



IF @owner IS NULL

    BEGIN

        SET @Start_Insert = ‘INSERT INTO ‘ + ‘[‘ + RTRIM(COALESCE(@target_table,@table_name)) + ‘]’

    END

ELSE

    BEGIN

        SET @Start_Insert =
‘INSERT ‘ + ‘[‘ + LTRIM(RTRIM(@owner)) + ‘].’ + ‘[‘ +
RTRIM(COALESCE(@target_table,@table_name)) + ‘]’        


    END





–To get the first column’s ID



SELECT    @Column_ID = MIN(ORDINAL_POSITION)    

FROM    INFORMATION_SCHEMA.COLUMNS (NOLOCK)

WHERE     TABLE_NAME = @table_name AND

(@owner IS NULL OR TABLE_SCHEMA = @owner)







–Loop through all the columns of the table, to get the column names and their data types

WHILE @Column_ID IS NOT NULL

    BEGIN

        SELECT     @Column_Name = QUOTENAME(COLUMN_NAME),

        @Data_Type = DATA_TYPE

        FROM     INFORMATION_SCHEMA.COLUMNS (NOLOCK)

        WHERE     ORDINAL_POSITION = @Column_ID AND

        TABLE_NAME = @table_name AND

        (@owner IS NULL OR TABLE_SCHEMA = @owner)







        IF @cols_to_include IS NOT NULL –Selecting only user specified columns

        BEGIN

            IF CHARINDEX( ”” + SUBSTRING(@Column_Name,2,LEN(@Column_Name)-2) + ””,@cols_to_include) = 0

            BEGIN

                GOTO SKIP_LOOP

            END

        END



        IF @cols_to_exclude IS NOT NULL –Selecting only user specified columns

        BEGIN

            IF CHARINDEX( ”” + SUBSTRING(@Column_Name,2,LEN(@Column_Name)-2) + ””,@cols_to_exclude) <> 0

            BEGIN

                GOTO SKIP_LOOP

            END

        END



        –Making sure to output SET IDENTITY_INSERT ON/OFF in case the table has an IDENTITY column

        IF (SELECT
COLUMNPROPERTY( OBJECT_ID(QUOTENAME(COALESCE(@owner,USER_NAME())) + ‘.’
+ @table_name),SUBSTRING(@Column_Name,2,LEN(@Column_Name) –
2),’IsIdentity’)) = 1


        BEGIN

            IF @ommit_identity = 0 –Determing whether to include or exclude the IDENTITY column

                SET @IDN = @Column_Name

            ELSE

                GOTO SKIP_LOOP           

        END

       

        –Making sure whether to output computed columns or not

        IF @ommit_computed_cols = 1

        BEGIN

            IF (SELECT
COLUMNPROPERTY( OBJECT_ID(QUOTENAME(COALESCE(@owner,USER_NAME())) + ‘.’
+ @table_name),SUBSTRING(@Column_Name,2,LEN(@Column_Name) –
2),’IsComputed’)) = 1


            BEGIN

                GOTO SKIP_LOOP                   

            END

        END

       

        –Tables with columns of IMAGE data type are not supported for obvious reasons

        IF(@Data_Type in (‘image’))

            BEGIN

                IF (@ommit_images = 0)

                    BEGIN

                        RAISERROR(‘Tables with image columns are not supported.’,16,1)

                        PRINT ‘Use @ommit_images = 1 parameter to generate INSERTs for the rest of the columns.’

                        PRINT
‘DO NOT ommit Column List in the INSERT statements. If you ommit column
list using @include_column_list=0, the generated INSERTs will fail.’


                        RETURN -1 –Failure. Reason: There is a column with image data type

                    END

                ELSE

                    BEGIN

                    GOTO SKIP_LOOP

                    END

            END



        –Determining the data type of the column and depending on the data type, the VALUES part of

        –the INSERT statement is generated. Care is taken to handle columns with NULL values. Also

        –making sure, not to lose any data from flot, real, money, smallmomey, datetime columns

        SET @Actual_Values = @Actual_Values  +

        CASE

            WHEN @Data_Type IN (‘char’,’varchar’,’nchar’,’nvarchar’)

                THEN

                    ‘COALESCE(”””” + REPLACE(RTRIM(‘ + @Column_Name + ‘),””””,””””””)+””””,”NULL”)’

            WHEN @Data_Type IN (‘datetime’,’smalldatetime’)

                THEN

                    ‘COALESCE(”””” + RTRIM(CONVERT(char,’ + @Column_Name + ‘,109))+””””,”NULL”)’

            WHEN @Data_Type IN (‘uniqueidentifier’)

                THEN 

                   
‘COALESCE(”””” + REPLACE(CONVERT(char(255),RTRIM(‘ + @Column_Name +
‘)),””””,””””””)+””””,”NULL”)’


            WHEN @Data_Type IN (‘text’,’ntext’)

                THEN 

                   
‘COALESCE(”””” + REPLACE(CONVERT(char(8000),’ + @Column_Name +
‘),””””,””””””)+””””,”NULL”)’                   


            WHEN @Data_Type IN (‘binary’,’varbinary’)

                THEN 

                    ‘COALESCE(RTRIM(CONVERT(char,’ + ‘CONVERT(int,’ + @Column_Name + ‘))),”NULL”)’ 

            WHEN @Data_Type IN (‘timestamp’,’rowversion’)

                THEN 

                    CASE

                        WHEN @include_timestamp = 0

                            THEN

                                ”’DEFAULT”’

                            ELSE

                                ‘COALESCE(RTRIM(CONVERT(char,’ + ‘CONVERT(int,’ + @Column_Name + ‘))),”NULL”)’ 

                    END

            WHEN @Data_Type IN (‘float’,’real’,’money’,’smallmoney’)

                THEN

                    ‘COALESCE(LTRIM(RTRIM(‘ + ‘CONVERT(char, ‘ +  @Column_Name  + ‘,2)’ + ‘)),”NULL”)’

            ELSE

                ‘COALESCE(LTRIM(RTRIM(‘ + ‘CONVERT(char, ‘ +  @Column_Name  + ‘)’ + ‘)),”NULL”)’

        END   + ‘+’ +  ”’,”’ + ‘ + ‘

       

        –Generating the column list for the INSERT statement

        SET @Column_List = @Column_List +  @Column_Name + ‘,’   



        SKIP_LOOP: –The label used in GOTO



        SELECT     @Column_ID = MIN(ORDINAL_POSITION)

        FROM     INFORMATION_SCHEMA.COLUMNS (NOLOCK)

        WHERE     TABLE_NAME = @table_name AND

        ORDINAL_POSITION > @Column_ID AND

        (@owner IS NULL OR TABLE_SCHEMA = @owner)





    –Loop ends here!

    END



–To get rid of the extra characters that got concatenated during the last run through the loop

SET @Column_List = LEFT(@Column_List,len(@Column_List) – 1)

SET @Actual_Values = LEFT(@Actual_Values,len(@Actual_Values) – 6)



IF LTRIM(@Column_List) = ”

    BEGIN

        RAISERROR(‘No columns to select. There should at least be one column to generate the output’,16,1)

        RETURN -1 –Failure. Reason: Looks like all the columns are ommitted using the @cols_to_exclude parameter

    END



–Forming the final string that will be executed, to output the INSERT statements

IF (@include_column_list <> 0)

    BEGIN

        SET @Actual_Values =

            ‘SELECT ‘ + 

            CASE WHEN @top IS NULL OR @top < 0 THEN ” ELSE ‘ TOP ‘ + LTRIM(STR(@top)) + ‘ ‘ END +

            ”” + RTRIM(@Start_Insert) +

            ‘ ”+’ + ”'(‘ + RTRIM(@Column_List) +  ”’+’ + ”’)”’ +

            ‘ +”VALUES(”+ ‘ +  @Actual_Values  + ‘+”)”’ + ‘ ‘ +

            COALESCE(@from,’
FROM ‘ + CASE WHEN @owner IS NULL THEN ” ELSE ‘[‘ +
LTRIM(RTRIM(@owner)) + ‘].’ END + ‘[‘ + rtrim(@table_name) + ‘]’ +
‘(NOLOCK)’)


    END

ELSE IF (@include_column_list = 0)

    BEGIN

        SET @Actual_Values =

            ‘SELECT ‘ +

            CASE WHEN @top IS NULL OR @top < 0 THEN ” ELSE ‘ TOP ‘ + LTRIM(STR(@top)) + ‘ ‘ END +

            ”” + RTRIM(@Start_Insert) +

            ‘ ” +”VALUES(”+ ‘ +  @Actual_Values + ‘+”)”’ + ‘ ‘ +

            COALESCE(@from,’
FROM ‘ + CASE WHEN @owner IS NULL THEN ” ELSE ‘[‘ +
LTRIM(RTRIM(@owner)) + ‘].’ END + ‘[‘ + rtrim(@table_name) + ‘]’ +
‘(NOLOCK)’)


    END   



–Determining whether to ouput any debug information

IF @debug_mode =1

    BEGIN

        PRINT ‘/*****START OF DEBUG INFORMATION*****’

        PRINT ‘Beginning of the INSERT statement:’

        PRINT @Start_Insert

        PRINT ”

        PRINT ‘The column list:’

        PRINT @Column_List

        PRINT ”

        PRINT ‘The SELECT statement executed to generate the INSERTs’

        PRINT @Actual_Values

        PRINT ”

        PRINT ‘*****END OF DEBUG INFORMATION*****/’

        PRINT ”

    END

       

PRINT ‘–INSERTs generated by ”sp_generate_inserts” stored procedure written by Vyas’

PRINT ‘–Build number: 22’

PRINT ‘–Problems/Suggestions? Contact Vyas @ vyaskn@hotmail.com’

PRINT ‘–http://vyaskn.tripod.com&#8217;

PRINT ”

PRINT ‘SET NOCOUNT ON’

PRINT ”





–Determining whether to print IDENTITY_INSERT or not

IF (@IDN <> ”)

    BEGIN

        PRINT ‘SET IDENTITY_INSERT ‘ + QUOTENAME(COALESCE(@owner,USER_NAME())) + ‘.’ + QUOTENAME(@table_name) + ‘ ON’

        PRINT ‘GO’

        PRINT ”

    END





IF @disable_constraints = 1 AND (OBJECT_ID(QUOTENAME(COALESCE(@owner,USER_NAME())) + ‘.’ + @table_name, ‘U’) IS NOT NULL)

    BEGIN

        IF @owner IS NULL

            BEGIN

                SELECT    
‘ALTER TABLE ‘ + QUOTENAME(COALESCE(@target_table, @table_name)) + ‘
NOCHECK CONSTRAINT ALL’ AS ‘–Code to disable constraints temporarily’


            END

        ELSE

            BEGIN

                SELECT    
‘ALTER TABLE ‘ + QUOTENAME(@owner) + ‘.’ +
QUOTENAME(COALESCE(@target_table, @table_name)) + ‘ NOCHECK CONSTRAINT
ALL’ AS ‘–Code to disable constraints temporarily’


            END



        PRINT ‘GO’

    END



PRINT ”

PRINT ‘PRINT ”Inserting values into ‘ + ‘[‘ + RTRIM(COALESCE(@target_table,@table_name)) + ‘]’ + ””





–All the hard work pays off here!!! You’ll get your INSERT statements, when the next line executes!

EXEC (@Actual_Values)



PRINT ‘PRINT ”Done”’

PRINT ”





IF @disable_constraints = 1 AND (OBJECT_ID(QUOTENAME(COALESCE(@owner,USER_NAME())) + ‘.’ + @table_name, ‘U’) IS NOT NULL)

    BEGIN

        IF @owner IS NULL

            BEGIN

                SELECT    
‘ALTER TABLE ‘ + QUOTENAME(COALESCE(@target_table, @table_name)) + ‘
CHECK CONSTRAINT ALL’  AS ‘–Code to enable the previously disabled
constraints’


            END

        ELSE

            BEGIN

                SELECT    
‘ALTER TABLE ‘ + QUOTENAME(@owner) + ‘.’ +
QUOTENAME(COALESCE(@target_table, @table_name)) + ‘ CHECK CONSTRAINT
ALL’ AS ‘–Code to enable the previously disabled constraints’


            END



        PRINT ‘GO’

    END



PRINT ”

IF (@IDN <> ”)

    BEGIN

        PRINT ‘SET IDENTITY_INSERT ‘ + QUOTENAME(COALESCE(@owner,USER_NAME())) + ‘.’ + QUOTENAME(@table_name) + ‘ OFF’

        PRINT ‘GO’

    END



PRINT ‘SET NOCOUNT OFF’





SET NOCOUNT OFF

RETURN 0 –Success. We are done!

END



GO



PRINT ‘Created the procedure’

GO





exec sys.sp_MS_marksystemobject  sp_generate_inserts



PRINT ‘Granting EXECUTE permission on sp_generate_inserts to all users’

GRANT EXEC ON sp_generate_inserts TO public



SET NOCOUNT OFF

GO



PRINT ‘Done’

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