在上篇MS SQL 排序规则总结中,大致就数据库服务器排序规则(或者叫数据库实例排序规则)、数据库排序规则、列的排序规则粗浅的叙说了一遍,重点讲述了修改数据库服务器排序规则(数据库实例排序规则),其中对于数据库排序规则的修改只是粗略带过。其实相对而言,修改服务器排序规则(数据库实例排序规则)相对简单一些,修改数据库的排序规则就复杂多了,因为涉及到数据、SQL脚本等等,例如,一不小心,修改排序规则后,数据当中可能就会出现乱码; 另外,修改数据库排序规则麻烦的是要大量修改相关表的字段的排序规则,如果不用脚本批量处理,那么这项工作想想就让人望而生畏。做这项工作前,一定要做好备份或在测试服务器测试通过后,然后进行数据库排序规则修改。

如果要首先了解一下修改排序规则,首先看看MS SQL 排序规则总结当中的介绍,重复的内容就不做过多介绍了。我们首先来看看,修改排序规则当中会遇到哪些问题吧。

DBMonitor数据库的排序规则为 Chinese_PRC_CI_AS,在数据库中创建TEST表,插入数据后,修改其排序规则为SQL_Latin1_General_CP1_CI_AS,然后

   1: USE DBMonitor; 

   2:  

   3: GO 

   4:  

   5: CREATE TABLE TEST 

   6:  

   7: ( 

   8:  

   9:  ID INT , 

  10:  

  11:  NAME VARCHAR(12), 

  12:  

  13:  CITY NVARCHAR(12) 

  14:  

  15: ) 

  16:  

  17: CREATE INDEX IDX_TEST_NAME ON TEST(NAME); 

  18:  

  19: CREATE INDEX IDX_TEST_CITY ON TEST(CITY);

  20:  

  21: INSERT INTO TEST 

  22:  

  23: …..

  24:  

  25: ALTER DATABASE DBMonitor COLLATE SQL_Latin1_General_CP1_CI_AS 

  26:  

修改排序规则后,你会发现数据库当中,修改排序规则前新建的表,其列的排序规则依然是旧的排序规则,当然,有时候它不会有任何影响,但是有时候也会导致SQL脚本中出现排序规则冲突等错误。

SELECT object_id,name, collation_name FROM sys.columns WHERE object_id =OBJECT_ID('TEST')

如上所示,修改列的排序规则当中,如果在这个字段上建有索引,那么修改列的排序规则时,就会报上面错误信息。这时需要先删除索引,修改列的排序规则后,然后重建索引。

所以要彻底修改这些列的排序规则,这项工作相当的繁琐和郁闷,还是推荐大家看看这位兄台的Easy way to change collation of all database objects in SQL Server的博客,由于这篇博客里面有些脚本没有写全,有些脚本我稍作了修改,例如将生成创建表索引、约束、删除表相关索引、约束的脚本写入表里面。Fix了一些小bug,至于还有没有其它bug,暂时还没有发现,如果大家有发现其它bug,欢迎指出错误。

SQL Script :ScriptDropTableKeys 创建生成指定表的约束、索引的脚本;

   1: --USE [DatabaseName]

   2: --GO

   3:  

   4: SET ANSI_NULLS ON

   5: GO

   6:  

   7: SET QUOTED_IDENTIFIER ON

   8: GO

   9:  

  10:  

  11: IF EXISTS (SELECT 1 FROM sysobjects WHERE id=OBJECT_ID(N'ScriptCreateTableKeys') AND OBJECTPROPERTY(id, 'IsProcedure') =1)

  12:     DROP PROCEDURE ScriptCreateTableKeys;

  13: GO

  14:  

  15: --================================================================================================================

  16: --        ProcedureName        :            ScriptCreateTableKeys

  17: --        Author                :            Raymund Macaalay    

  18: --        CreateDate            :            2011-09-11

  19: --        Description            :            生成数据库里指定表的Constraints,Primary Key, Foreign Key, Index的创建脚本. 

  20: /*****************************************************************************************************************

  21:         Parameters            :                                    参数说明

  22: ******************************************************************************************************************

  23:         @table_name            :                    数据库用户表的名字

  24: ******************************************************************************************************************

  25:    Modified Date    Modified User     Version                 Modified Reason

  26: ******************************************************************************************************************

  27:     2013-11-06             Kerry         V01.00.00         修改生成脚本的输出方式,将其写入表CreateTableKeys

  28:     2013-11-08             Kerry       V01.00.01       Fix生成索引的一些bugs:

  29:                                                         1: 非唯一索引不生成索引

  30:                                                         2:索引type_des为HEAP的索引也会生成。                                                                           

  31: ******************************************************************************************************************/

  32:  

  33: --================================================================================================================

  34:  

  35:  

  36: CREATE PROC [dbo].[ScriptCreateTableKeys]

  37:     @table_name SYSNAME

  38: AS

  39: BEGIN

  40:     SET NOCOUNT ON

  41:  

  42:     --Note: Disabled keys and constraints are ignored

  43:     --TODO: Drop and re-create referencing XML indexes, FTS catalogs

  44:  

  45:     DECLARE @crlf CHAR(2)

  46:     SET @crlf = CHAR(13) + CHAR(10)

  47:     DECLARE @version CHAR(4)

  48:     SET @version = SUBSTRING(@@VERSION, LEN('Microsoft SQL Server') + 2, 4)

  49:     DECLARE @object_id INT

  50:     SET @object_id = OBJECT_ID(@table_name)

  51:     DECLARE @sql NVARCHAR(MAX)

  52:  

  53:     IF @version NOT IN ('2005', '2008')

  54:     BEGIN

  55:         RAISERROR('This script only supports SQL Server 2005 and 2008', 16, 1)

  56:         RETURN

  57:     END

  58:  

  59:     SET @sql = '' +

  60:         'SELECT ' +

  61:             'CASE ' +

  62:                 'WHEN 1 IN (i.is_primary_key, i.is_unique_constraint) THEN ' +

  63:                     '''ALTER TABLE '' + ' +

  64:                         'QUOTENAME(OBJECT_SCHEMA_NAME(i.object_id)) + ''.'' + ' +

  65:                         'QUOTENAME(OBJECT_NAME(i.object_id)) + @crlf + ' +

  66:                     '''ADD '' + ' +

  67:                         'CASE k.is_system_named ' +

  68:                             'WHEN 0 THEN ''CONSTRAINT '' + QUOTENAME(k.name) + @crlf ' +

  69:                             'ELSE '''' ' +

  70:                         'END + ' +

  71:                     'CASE k.type ' +

  72:                         'WHEN ''UQ'' THEN ''UNIQUE'' ' +

  73:                         'ELSE ''PRIMARY KEY'' ' +

  74:                     'END + '' '' + ' +

  75:                     'i.type_desc  + @crlf + ' +

  76:                     'kc.key_columns + @crlf ' +

  77:                 'ELSE ' +

  78:                     '''CREATE '' + CASE WHEN i.is_unique = 1 THEN '' UNIQUE '' ELSE '''' end + i.type_desc + '' INDEX '' + ' +

  79:                         'QUOTENAME(i.name) + @crlf + ' +

  80:                     '''ON '' + ' +

  81:                         'QUOTENAME(OBJECT_SCHEMA_NAME(i.object_id)) + ''.'' + ' +

  82:                         'QUOTENAME(OBJECT_NAME(i.object_id)) + @crlf + ' +

  83:                     'kc.key_columns + @crlf + ' +

  84:                     'COALESCE ' +

  85:                     '( ' +

  86:                         '''INCLUDE '' + @crlf + ' +

  87:                         '''( '' + @crlf + ' +

  88:                             'STUFF ' +

  89:                             '( ' +

  90:                                 '( ' +

  91:                                     'SELECT ' +

  92:                                     '( ' +

  93:                                         'SELECT ' +

  94:                                             ''','' + @crlf + '' '' + QUOTENAME(c.name) AS [text()] ' +

  95:                                         'FROM sys.index_columns AS ic ' +

  96:                                         'JOIN sys.columns AS c ON ' +

  97:                                             'c.object_id = ic.object_id ' +

  98:                                             'AND c.column_id = ic.column_id ' +

  99:                                         'WHERE ' +

 100:                                             'ic.object_id = i.object_id ' +

 101:                                             'AND ic.index_id = i.index_id ' +

 102:                                             'AND ic.is_included_column = 1 ' +

 103:                                         'ORDER BY ' +

 104:                                             'ic.key_ordinal ' +

 105:                                         'FOR XML PATH(''''), TYPE ' +

 106:                                     ').value(''.'', ''VARCHAR(MAX)'') ' +

 107:                                 '), ' +

 108:                                 '1, ' +

 109:                                 '3, ' +

 110:                                 ''''' ' +

 111:                             ') + @crlf + ' +

 112:                         ''')'' + @crlf, ' +

 113:                         ''''' ' +

 114:                     ') ' +

 115:             'END + ' +

 116:             '''WITH '' + @crlf + ' +

 117:             '''('' + @crlf + ' +

 118:                 ''' PAD_INDEX = '' + ' +

 119:                         'CASE CONVERT(VARCHAR, i.is_padded) ' +

 120:                             'WHEN 1 THEN ''ON'' ' +

 121:                             'ELSE ''OFF'' ' +

 122:                         'END + '','' + @crlf + ' +

 123:                 'CASE i.fill_factor ' +

 124:                     'WHEN 0 THEN '''' ' +

 125:                     'ELSE ' +

 126:                         ''' FILLFACTOR = '' + ' +

 127:                                 'CONVERT(VARCHAR, i.fill_factor) + '','' + @crlf ' +

 128:                 'END + ' +

 129:                 ''' IGNORE_DUP_KEY = '' + ' +

 130:                         'CASE CONVERT(VARCHAR, i.ignore_dup_key) ' +

 131:                             'WHEN 1 THEN ''ON'' ' +

 132:                             'ELSE ''OFF'' ' +

 133:                         'END + '','' + @crlf + ' +

 134:                 ''' ALLOW_ROW_LOCKS = '' + ' +

 135:                         'CASE CONVERT(VARCHAR, i.allow_row_locks) ' +

 136:                             'WHEN 1 THEN ''ON'' ' +

 137:                             'ELSE ''OFF'' ' +

 138:                         'END + '','' + @crlf + ' +

 139:                 ''' ALLOW_PAGE_LOCKS = '' + ' +

 140:                         'CASE CONVERT(VARCHAR, i.allow_page_locks) ' +

 141:                             'WHEN 1 THEN ''ON'' ' +

 142:                             'ELSE ''OFF'' ' +

 143:                         'END + ' +

 144:                 CASE @version

 145:                     WHEN '2005' THEN ''

 146:                     ELSE             

 147:                         ''','' + @crlf + ' +

 148:                         ''' DATA_COMPRESSION = '' + ' +

 149:                             '( ' +

 150:                                 'SELECT ' +

 151:                                     'CASE ' +

 152:                                         'WHEN MIN(p.data_compression_desc) = 

 153:                                           MAX(p.data_compression_desc) 

 154:                                           THEN MAX(p.data_compression_desc) ' +

 155:                                           'ELSE ''[PARTITIONS USE 

 156:                                           MULTIPLE COMPRESSION TYPES]'' ' +

 157:                                     'END ' +

 158:                                 'FROM sys.partitions AS p ' +

 159:                                 'WHERE ' +

 160:                                     'p.object_id = i.object_id ' +

 161:                                     'AND p.index_id = i.index_id ' +

 162:                             ') '

 163:                 END + '+ @crlf + ' +

 164:             ''') '' + @crlf + ' +

 165:             '''ON '' + ds.data_space + '';'' + ' +

 166:                 '@crlf + @crlf COLLATE database_default AS [-- Create Candidate Keys] ' +

 167:         'FROM sys.indexes AS i ' +

 168:         'LEFT OUTER JOIN sys.key_constraints AS k ON ' +

 169:             'k.parent_object_id = i.object_id ' +

 170:             'AND k.unique_index_id = i.index_id ' +

 171:         'CROSS APPLY ' +

 172:         '( ' +

 173:             'SELECT ' +

 174:                 '''( '' + @crlf + ' +

 175:                     'STUFF ' +

 176:                     '( ' +

 177:                         '( ' +

 178:                             'SELECT ' +

 179:                             '( ' +

 180:                                 'SELECT ' +

 181:                                     ''','' + @crlf + '' '' + QUOTENAME(c.name) AS [text()] ' +

 182:                                 'FROM sys.index_columns AS ic ' +

 183:                                 'JOIN sys.columns AS c ON ' +

 184:                                     'c.object_id = ic.object_id ' +

 185:                                     'AND c.column_id = ic.column_id ' +

 186:                                 'WHERE ' +

 187:                                     'ic.object_id = i.object_id ' +

 188:                                     'AND ic.index_id = i.index_id ' +

 189:                                     'AND ic.key_ordinal > 0 ' +

 190:                                 'ORDER BY ' +

 191:                                     'ic.key_ordinal ' +

 192:                                 'FOR XML PATH(''''), TYPE ' +

 193:                             ').value(''.'', ''VARCHAR(MAX)'') ' +

 194:                         '), ' +

 195:                         '1, ' +

 196:                         '3, ' +

 197:                         ''''' ' +

 198:                     ') + @crlf + ' +

 199:                 ''')'' ' +

 200:         ') AS kc (key_columns) ' +

 201:         'CROSS APPLY ' +

 202:         '( ' +

 203:             'SELECT ' +

 204:                 'QUOTENAME(d.name) + ' +

 205:                     'CASE d.type ' +

 206:                         'WHEN ''PS'' THEN ' +

 207:                             '+ ' +

 208:                             '''('' + ' +

 209:                                 '( ' +

 210:                                     'SELECT ' +

 211:                                         'QUOTENAME(c.name) ' +

 212:                                     'FROM sys.index_columns AS ic ' +

 213:                                     'JOIN sys.columns AS c ON ' +

 214:                                         'c.object_id = ic.object_id ' +

 215:                                         'AND c.column_id = ic.column_id ' +

 216:                                     'WHERE ' +

 217:                                         'ic.object_id = i.object_id ' +

 218:                                         'AND ic.index_id = i.index_id ' +

 219:                                         'AND ic.partition_ordinal = 1 ' +

 220:                                 ') + ' +

 221:                             ''')'' ' +

 222:                         'ELSE '''' ' +

 223:                     'END ' +

 224:             'FROM sys.data_spaces AS d ' +

 225:             'WHERE ' +

 226:                 'd.data_space_id = i.data_space_id ' +

 227:         ') AS ds (data_space) ' +

 228:         'WHERE ' +

 229:             'i.object_id = @object_id ' +

 230:             --'AND i.is_unique = 1 ' +

 231:             'AND i.type >=1' +

 232:             --filtered and hypothetical indexes cannot be candidate keys

 233:             CASE @version

 234:                 WHEN '2008' THEN 'AND i.has_filter = 0 '

 235:                 ELSE ''

 236:             END +

 237:             'AND i.is_hypothetical = 0 ' +

 238:             'AND i.is_disabled = 0 ' +

 239:         'ORDER BY ' +

 240:             'i.index_id '

 241:  

 242:     --print @sql;

 243:     INSERT INTO  CreateTableKeys

 244:     EXEC sp_executesql @sql,  N'@object_id INT, @crlf CHAR(2)',

 245:         @object_id, @crlf

 246:  

 247:     INSERT INTO  CreateTableKeys

 248:     SELECT

 249:         'ALTER TABLE ' + 

 250:             QUOTENAME(OBJECT_SCHEMA_NAME(fk.parent_object_id)) + '.' + 

 251:             QUOTENAME(OBJECT_NAME(fk.parent_object_id)) + @crlf +

 252:         CASE fk.is_not_trusted

 253:             WHEN 0 THEN 'WITH CHECK '

 254:             ELSE 'WITH NOCHECK '

 255:         END + 

 256:             'ADD ' +

 257:                 CASE fk.is_system_named

 258:                     WHEN 0 THEN 'CONSTRAINT ' + QUOTENAME(name) + @crlf

 259:                     ELSE ''

 260:                 END +

 261:         'FOREIGN KEY ' + @crlf + 

 262:         '( ' + @crlf + 

 263:             STUFF

 264: (

 265: (

 266:                     SELECT

 267: (

 268:                         SELECT 

 269:                             ',' + @crlf + ' ' + QUOTENAME(c.name) AS [text()]

 270:                         FROM sys.foreign_key_columns AS fc

 271:                         JOIN sys.columns AS c ON

 272:                             c.object_id = fc.parent_object_id

 273:                             AND c.column_id = fc.parent_column_id

 274:                         WHERE 

 275:                             fc.constraint_object_id = fk.object_id

 276:                         ORDER BY

 277:                             fc.constraint_column_id

 278:                         FOR XML PATH(''), TYPE

 279:                     ).value('.', 'VARCHAR(MAX)')

 280:                 ),

 281:                 1,

 282:                 3,

 283:                 ''

 284:             ) + @crlf + 

 285:         ') ' +

 286:         'REFERENCES ' + 

 287:             QUOTENAME(OBJECT_SCHEMA_NAME(fk.referenced_object_id)) + '.' + 

 288:             QUOTENAME(OBJECT_NAME(fk.referenced_object_id)) + @crlf +

 289:         '( ' + @crlf + 

 290:             STUFF

 291: (

 292: (

 293:                     SELECT

 294: (

 295:                         SELECT 

 296:                             ',' + @crlf + ' ' + QUOTENAME(c.name) AS [text()]

 297:                         FROM sys.foreign_key_columns AS fc

 298:                         JOIN sys.columns AS c ON

 299:                             c.object_id = fc.referenced_object_id

 300:                             AND c.column_id = fc.referenced_column_id

 301:                         WHERE 

 302:                             fc.constraint_object_id = fk.object_id

 303:                         ORDER BY

 304:                             fc.constraint_column_id

 305:                         FOR XML PATH(''), TYPE

 306:                     ).value('.', 'VARCHAR(MAX)')

 307:                 ),

 308:                 1,

 309:                 3,

 310:                 ''

 311:             ) + @crlf + 

 312:         ');

 313:         GO' + 

 314:             @crlf + @crlf COLLATE database_default AS [-- Create Referencing FKs]

 315:     FROM sys.foreign_keys AS fk

 316:     WHERE

 317:         referenced_object_id = @object_id

 318:         AND is_disabled = 0

 319:     ORDER BY

 320:         key_index_id

 321:  

 322: END

 323:  

 324: GO

 325:  

 326:  

SQL Script:ScriptDropTableKeys 创建删除指定表的约束、索引的脚本

   1: --USE [DatabaseName]

   2: --GO

   3:  

   4:  

   5: SET ANSI_NULLS ON

   6: GO

   7:  

   8: SET QUOTED_IDENTIFIER ON

   9: GO

  10:  

  11: IF EXISTS (SELECT 1 FROM sysobjects WHERE id=OBJECT_ID(N'ScriptDropTableKeys') AND OBJECTPROPERTY(id, 'IsProcedure') =1)

  12:     DROP PROCEDURE ScriptDropTableKeys;

  13: GO

  14:  

  15: --===============================================================================================================

  16: --        ProcedureName        :            ScriptDropTableKeys

  17: --        Author                :            Raymund Macaalay    

  18: --        CreateDate            :            2011-09-11

  19: --        Description            :            删除数据库里指定表的Constraints,Primary Key, Foreign Key, Index 

  20: /*****************************************************************************************************************

  21:         Parameters            :                                    参数说明

  22: ******************************************************************************************************************

  23:         @table_name            :                    数据库用户表的名字

  24: ******************************************************************************************************************

  25:    Modified Date    Modified User     Version                 Modified Reason

  26: ******************************************************************************************************************

  27:     2013-11-06             Kerry         V01.00.00         修改生成脚本的输出方式,将其写入表DropTableKeys

  28:     2013-12-08             Kerry         V01.00.00         Fix掉脚本中一个小bug: 不生成删除非唯一索引的SQL Script

  29: *****************************************************************************************************************/

  30:  

  31: --==============================================================================================================

  32:  

  33: CREATE PROC [dbo].[ScriptDropTableKeys]

  34:     @table_name SYSNAME

  35: AS

  36: BEGIN

  37:     SET NOCOUNT ON

  38:  

  39:     --Note: Disabled keys and constraints are ignored

  40:     --TODO: Drop and re-create referencing XML indexes, FTS catalogs

  41:  

  42:     DECLARE @crlf CHAR(2)

  43:     SET @crlf = CHAR(13) + CHAR(10)

  44:     DECLARE @version CHAR(4)

  45:     SET @version = SUBSTRING(@@VERSION, LEN('Microsoft SQL Server') + 2, 4)

  46:     DECLARE @object_id INT

  47:     SET @object_id = OBJECT_ID(@table_name)

  48:     DECLARE @sql NVARCHAR(MAX)

  49:  

  50:     IF @version NOT IN ('2005', '2008')

  51:     BEGIN

  52:         RAISERROR('This script only supports SQL Server 2005 and 2008', 16, 1)

  53:         RETURN

  54:     END

  55:  

  56:     INSERT INTO dbo.DropTableKeys

  57:     SELECT

  58:         'ALTER TABLE ' + 

  59:             QUOTENAME(OBJECT_SCHEMA_NAME(parent_object_id)) + '.' + 

  60:             QUOTENAME(OBJECT_NAME(parent_object_id)) + @crlf +

  61:         'DROP CONSTRAINT ' + QUOTENAME(name) + ';' + 

  62:             @crlf + @crlf COLLATE database_default AS [-- Drop Referencing FKs]

  63:     FROM sys.foreign_keys

  64:     WHERE

  65:         referenced_object_id = @object_id

  66:         AND is_disabled = 0

  67:     ORDER BY

  68:         key_index_id DESC

  69:  

  70:     

  71:     SET @sql = '' +

  72:         'SELECT ' +

  73:             'statement AS [-- Drop Candidate Keys] ' +

  74:         'FROM ' +

  75:         '( ' +

  76:             'SELECT ' +

  77:                 'CASE ' +

  78:                     'WHEN 1 IN (i.is_unique_constraint, i.is_primary_key) THEN ' +

  79:                         '''ALTER TABLE '' + ' +

  80:                             'QUOTENAME(OBJECT_SCHEMA_NAME(i.object_id)) + ''.'' + ' +

  81:                             'QUOTENAME(OBJECT_NAME(i.object_id)) + @crlf + ' +

  82:                         '''DROP CONSTRAINT '' + QUOTENAME(i.name) + '';'' + ' +

  83:                             '@crlf + @crlf COLLATE database_default ' +

  84:                     'ELSE ' +

  85:                         '''DROP INDEX '' + QUOTENAME(i.name) + @crlf + ' +

  86:                         '''ON '' + ' +

  87:                             'QUOTENAME(OBJECT_SCHEMA_NAME(object_id)) + ''.'' + ' +

  88:                             'QUOTENAME(OBJECT_NAME(object_id)) + '';'' + ' +

  89:                                 '@crlf + @crlf COLLATE database_default ' +

  90:                 'END AS statement, ' +

  91:                 'i.index_id ' +

  92:             'FROM sys.indexes AS i ' +

  93:             'WHERE ' +

  94:                 'i.object_id = @object_id ' +

  95:                 --'AND i.is_unique = 1 ' +

  96:                 ' AND i.type >=1' +

  97:                 --filtered and hypothetical indexes cannot be candidate keys

  98:                 CASE @version

  99:                     WHEN '2008' THEN 'AND i.has_filter = 0 '

 100:                     ELSE ''

 101:                 END +

 102:                 'AND i.is_hypothetical = 0 ' +

 103:                 'AND i.is_disabled = 0 ' +

 104:         ') AS x ' +

 105:         'ORDER BY ' +

 106:             'index_id DESC;'

 107:     

 108:     --PRINT @sql;        

 109:     INSERT INTO  dbo.DropTableKeys

 110:     EXEC sp_executesql @sql,

 111:         N'@object_id INT, @crlf CHAR(2)',

 112:         @object_id, @crlf

 113:  

 114: END

 115: GO

 116:  

 117:  

SQL Script: sp_change_collation_script 创建修改列排序规则的脚本,以及循环调用ScriptDropTableKeys 、ScriptDropTableKeys 生成对应的脚本

   1:  

   2: --USE [DW_ESQUEL]

   3: --GO

   4:  

   5:  

   6: SET ANSI_NULLS ON

   7: GO

   8:  

   9: SET QUOTED_IDENTIFIER ON

  10: GO

  11:  

  12: IF EXISTS (SELECT 1 FROM sysobjects WHERE id=OBJECT_ID(N'sp_change_collation_script') AND OBJECTPROPERTY(id, 'IsProcedure') =1)

  13:     DROP PROCEDURE sp_change_collation_script;

  14: GO

  15:  

  16: --===============================================================================================

  17: --        ProcedureName        :            sp_change_collation_script

  18: --        Author                :            Kerry    

  19: --        CreateDate            :            2013-11-6

  20: --        Description            :            组合、补全Raymund Macaalay的脚本,生成改变列排序规则的脚本 

  21: /*************************************************************************************************

  22:         Parameters            :                                    参数说明

  23: **************************************************************************************************

  24:         @table_name            :                    数据库用户表的名字

  25: **************************************************************************************************

  26:    Modified Date    Modified User     Version                 Modified Reason

  27: **************************************************************************************************

  28:     2013-11-6             Kerry         V01.00.00         

  29: *************************************************************************************************/

  30:  

  31: --===============================================================================================

  32: CREATE PROCEDURE [dbo].[sp_change_collation_script]

  33:         @CollationName SYSNAME

  34: AS

  35: BEGIN

  36:    

  37: SET NOCOUNT ON

  38: DECLARE @SQLText            VARCHAR(MAX) ;

  39: DECLARE @TableName            NVARCHAR(255);

  40: DECLARE @ColumnName            sysname         ;

  41: DECLARE @DataType            NVARCHAR(128);

  42: DECLARE @CharacterMaxLen    INT             ;

  43: DECLARE @IsNullable            VARCHAR(3)     ;

  44: DECLARE @CreateSqlRowNum    INT;

  45: DECLARE @DropSqlRowNum        INT;

  46:  

  47: DECLARE MyTableCursor        Cursor

  48: FOR 

  49: SELECT name FROM sys.tables WHERE [type] = 'U' and name <> 'sysdiagrams' ORDER BY name 

  50:  

  51:  

  52: IF NOT EXISTS ( SELECT  1

  53:                 FROM    dbo.sysobjects

  54:                 WHERE   id = OBJECT_ID(N'[dbo].[ChangeColCollation]')

  55:                         AND xtype = 'U' )

  56:     BEGIN 

  57:     

  58:         CREATE TABLE [dbo].[ChangeColCollation] ( SQL_TEXT VARCHAR(MAX) )

  59:     END

  60: ELSE

  61:     TRUNCATE TABLE [dbo].[ChangeColCollation];

  62:     

  63:     

  64: OPEN MyTableCursor;

  65: FETCH NEXT FROM MyTableCursor INTO @TableName

  66:  

  67:  

  68: WHILE @@FETCH_STATUS = 0

  69:     BEGIN

  70:         DECLARE MyColumnCursor Cursor

  71:         FOR 

  72:         SELECT COLUMN_NAME,DATA_TYPE, CHARACTER_MAXIMUM_LENGTH,

  73:             IS_NULLABLE from information_schema.columns

  74:             WHERE table_name = @TableName AND  (Data_Type LIKE '%char%' 

  75:             OR Data_Type LIKE '%text%') AND COLLATION_NAME <> @CollationName

  76:             ORDER BY ordinal_position 

  77:         Open MyColumnCursor

  78:  

  79:         FETCH NEXT FROM MyColumnCursor INTO @ColumnName, @DataType, 

  80:               @CharacterMaxLen, @IsNullable

  81:         WHILE @@FETCH_STATUS = 0

  82:             BEGIN

  83:             SET @SQLText = 'ALTER TABLE ' + @TableName + ' ALTER COLUMN [' + @ColumnName + '] ' + 

  84:               @DataType + '(' + CASE WHEN @CharacterMaxLen = -1 THEN 'MAX' ELSE CAST(@CharacterMaxLen AS VARCHAR(6)) END + 

  85:               ') COLLATE ' + @CollationName + ' ' + 

  86:               CASE WHEN @IsNullable = 'NO' THEN 'NOT NULL' ELSE 'NULL' END

  87:             --PRINT @SQLText 

  88:             

  89:             INSERT INTO ChangeColCollation

  90:             VALUES (@SQLText);

  91:  

  92:         FETCH NEXT FROM MyColumnCursor INTO @ColumnName, @DataType, 

  93:               @CharacterMaxLen, @IsNullable

  94:         END

  95:         CLOSE MyColumnCursor

  96:         DEALLOCATE MyColumnCursor

  97:  

  98: FETCH NEXT FROM MyTableCursor INTO @TableName

  99: END

 100: CLOSE MyTableCursor

 101: --DEALLOCATE MyTableCursor

 102:  

 103:  

 104: IF NOT EXISTS ( SELECT  1

 105:                 FROM    dbo.sysobjects

 106:                 WHERE   id = OBJECT_ID(N'[dbo].[CreateTableKeys]')

 107:                         AND xtype = 'U' )

 108:     BEGIN 

 109:     

 110:         CREATE TABLE [dbo].[CreateTableKeys] ( SQL_TEXT VARCHAR(MAX) )

 111:     END

 112: ELSE

 113:     TRUNCATE TABLE [dbo].[CreateTableKeys];

 114:  

 115:   

 116:     

 117: IF NOT EXISTS ( SELECT  1

 118:                 FROM    dbo.sysobjects

 119:                 WHERE   id = OBJECT_ID(N'[dbo].[DropTableKeys]')

 120:                         AND XTYPE = 'U' )

 121:     BEGIN

 122:         CREATE TABLE dbo.DropTableKeys ( SQL_TEXT VARCHAR(MAX) )

 123:     END

 124: ELSE

 125:     TRUNCATE TABLE dbo.DropTableKeys;

 126:     

 127:     

 128:  

 129: OPEN MyTableCursor

 130:  

 131: FETCH NEXT FROM MyTableCursor INTO @TableName

 132: PRINT @TableName

 133: WHILE @@FETCH_STATUS = 0

 134:     BEGIN

 135:   

 136:      EXEC ScriptCreateTableKeys @TableName  --生成创建约束、索引等的脚本

 137:      EXEC ScriptDropTableKeys @TableName     --生成删除约束、索引等的脚本

 138:     FETCH NEXT FROM MyTableCursor INTO @TableName

 139: END

 140: CLOSE MyTableCursor

 141: DEALLOCATE MyTableCursor

 142:  

 143:  

 144: SELECT @CreateSqlRowNum = COUNT(1) FROM dbo.CreateTableKeys;

 145: SELECT @DropSqlRowNum = COUNT(1) FROM dbo.DropTableKeys;

 146:  

 147: IF @CreateSqlRowNum != @DropSqlRowNum

 148:     PRINT 'The table CreateTableKeys rows is different from the row of DropTableKeys ,please check the reason'

 149:  

 150:  

 151: END

 152: GO

修改数据库的排序规则时,按如下步骤顺序执行SQL

   1:  

   2: ALTER DATABASE DataBase COLLATE Chinese_PRC_CI_AS

   3:  

   4: EXEC  sp_change_collation_script 'Chinese_PRC_CI_AS';

   5:  

   6: --执行下表里面的SQL语句

   7: SELECT * FROM dbo.DropTableKeys

   8:  

   9: --执行下表里面的SQL语句

  10: SELECT * FROM ChangeColCollation

  11:  

  12: --执行下表里面的SQL语句

  13: SELECT * FROM dbo.CreateTableKeys

 

最后验证没有问题后,可以删除dbo.CreateTableKeys、dbo.DropTableKeys、dbo.ChangeColCollation等表。修改数据库的排序规则完成。

 

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