Sqlserver数据迁移踩坑记

USE [zssg]
GO
ALTER DATABASE [TESTDB] SET READ_ONLY WITH NO_WAIT
GO

select ‘exec sp_rename ‘‘‘ + name + ‘‘‘,‘‘newfix_‘ + name + ‘‘‘;‘ from sys.tables;

-- 有自增字段的
select name,‘set identity_insert newfix_‘ +name+‘ ON; insert into newfix_‘+name+ ‘(‘+columns+ ‘) select ‘+columns+ ‘ from ‘+ name+ ‘ where 1=1;‘+‘set identity_insert newfix_‘ +name+‘ OFF;‘ from (
SELECT a.name, 
         columns = stuff((
                 SELECT ‘,[‘ + b.name + ‘]‘
                   FROM sys.columns B join sys.tables c on B.object_id = c.object_id where  c.name = a.name
                    FOR xml path(‘‘)) , 1 , 1 , ‘‘)
    FROM sys.tables A where 1=1 and a.name not like ‘newfix_%‘ group by a.name
)aa where exists(
select 1 from syscolumns where id=object_id(‘newfix_‘ + aa.name) and status=0x80
) order by aa.name;

select *from sys.tables A where 1=1 and a.name not like ‘newfix_%‘

-- 没有自增字段的
select name,‘insert into newfix_‘+name+ ‘(‘+columns+ ‘) select ‘+columns+ ‘ from ‘+ name+ ‘ where 1=1;‘ from (
SELECT a.name, 
         columns = stuff((
                 SELECT ‘,[‘ + b.name + ‘]‘
                   FROM sys.columns B join sys.tables c on B.object_id = c.object_id where  c.name = a.name
                    FOR xml path(‘‘)) , 1 , 1 , ‘‘)
    FROM sys.tables A where 1=1 and a.name not like ‘newfix_%‘ group by a.name
)aa where not exists(
select 1 from syscolumns where id=object_id(‘newfix_‘ + aa.name) and status=0x80
) order by aa.name;

select ‘exec sp_rename ‘‘‘ + name + ‘‘‘,‘‘oldfix_‘ + name + ‘‘‘;‘ from sys.tables where name not like ‘newfix_%‘;

select ‘exec sp_rename ‘‘‘ + name + ‘‘‘,‘‘‘ + REPLACE (name, ‘newfix_‘,‘‘) + ‘‘‘;‘ from sys.tables where name like ‘newfix_%‘;

BEGIN
    WITH tx AS (
        SELECT
            a.object_id,
            b.name AS schema_name,
            a.name AS table_name,
            c.name AS ix_name,
            c.is_unique AS ix_unique,
            c.type_desc AS ix_type_desc,
            d.index_column_id,
            d.is_included_column,
            e.name AS column_name,
            f.name AS fg_name,
            d.is_descending_key AS is_descending_key,
            c.is_primary_key,
            c.is_unique_constraint
        FROM
            sys.tables AS a
        INNER JOIN sys.schemas AS b ON a.schema_id = b.schema_id
        AND a.is_ms_shipped = 0
        INNER JOIN sys.indexes AS c ON a.object_id = c.object_id
        INNER JOIN sys.index_columns AS d ON d.object_id = c.object_id
        AND d.index_id = c.index_id
        INNER JOIN sys.columns AS e ON e.object_id = d.object_id
        AND e.column_id = d.column_id
        INNER JOIN sys.data_spaces AS f ON f.data_space_id = c.data_space_id
    ) SELECT
        Drop_Index = CASE
    WHEN (
        a.is_primary_key = 1
        OR a.is_unique_constraint = 1
    ) THEN
        ‘ALTER TABLE ‘ + a.table_name + ‘ DROP CONSTRAINT ‘ + a.ix_name + ‘;‘
    ELSE
        ‘DROP INDEX ‘ + a.ix_name COLLATE SQL_Latin1_General_CP1_CI_AS + ‘ ON ‘ + a.schema_name + ‘.‘ + a.table_name + ‘;‘
    END,
    Create_Index = CASE
WHEN (
    a.is_primary_key = 1
    OR a.is_unique_constraint = 1
) THEN
    ‘ALTER TABLE ‘ + a.table_name + ‘ ADD CONSTRAINT ‘ + a.ix_name + CASE
WHEN a.is_primary_key = 1 THEN
    ‘ PRIMARY KEY‘
ELSE
    ‘ UNIQUE‘
END + ‘(‘ + indexColumns.ix_index_column_name + ‘);‘
ELSE
    ‘CREATE ‘ + CASE
WHEN a.ix_unique = 1 THEN
    ‘UNIQUE ‘
ELSE
    ‘‘
END + a.ix_type_desc + ‘ INDEX ‘ + a.ix_name COLLATE SQL_Latin1_General_CP1_CI_AS + ‘ ON ‘ + a.schema_name + ‘.‘ + a.table_name + ‘(‘ + indexColumns.ix_index_column_name + ‘)‘ + CASE
WHEN IncludeIndex.ix_included_column_name IS NOT NULL THEN
    ‘ INCLUDE (‘ + IncludeIndex.ix_included_column_name + ‘)‘
ELSE
    ‘‘
END + ‘ ON [‘ + a.fg_name + ‘];‘
END,
 CASE
WHEN a.ix_unique = 1 THEN
    ‘UNIQUE‘
END AS ix_unique,
 a.ix_type_desc,
 a.ix_name,
 a.schema_name,
 a.table_name,
 indexColumns.ix_index_column_name,
 IncludeIndex.ix_included_column_name,
 a.fg_name,
 a.is_primary_key,
 a.is_unique_constraint
FROM
    (
        SELECT DISTINCT
            ix_unique,
            ix_type_desc,
            ix_name,
            schema_name,
            table_name,
            fg_name,
            is_primary_key,
            is_unique_constraint
        FROM
            tx
    ) AS a OUTER APPLY (
        SELECT
            ix_index_column_name = STUFF(
                (
                    SELECT
                        ‘,‘ + column_name + CASE
                    WHEN is_descending_key = 1 THEN
                        ‘ DESC‘
                    ELSE
                        ‘‘
                    END
                    FROM
                        tx AS b
                    WHERE
                        schema_name = a.schema_name
                    AND table_name = a.table_name
                    AND ix_name = a.ix_name
                    AND ix_type_desc = a.ix_type_desc
                    AND fg_name = a.fg_name
                    AND is_included_column = 0
                    ORDER BY
                        index_column_id FOR XML PATH (‘‘)
                ),
                1,
                1,
                ‘‘
            )
    ) IndexColumns OUTER APPLY (
        SELECT
            ix_included_column_name = STUFF(
                (
                    SELECT
                        ‘,‘ + column_name
                    FROM
                        tx AS b
                    WHERE
                        schema_name = a.schema_name
                    AND table_name = a.table_name
                    AND ix_name = a.ix_name
                    AND ix_type_desc = a.ix_type_desc
                    AND fg_name = a.fg_name
                    AND is_included_column = 1
                    ORDER BY
                        index_column_id FOR XML PATH (‘‘)
                ),
                1,
                1,
                ‘‘
            )
    ) IncludeIndex where 1=1
ORDER BY
    a.schema_name,
    a.table_name,
    a.ix_name
END

select ‘drop table ‘ + name + ‘;‘ from sys.tables where name like ‘oldfix_%‘;

drop database mid_db;