SSMS 中的区分大小写

Question

我的 SQL Server Management Studio 突然变得区分大小写。 数据库和服务器都设置为不区分大小写

SQL_Latin1_General_CP1_CI_AS

我运行类似的查询

Select * From mytable 

，并且得到“无效的对象名称”，

但是如果我运行，

select * from MyTable

我会得到数据！

我创建了一个新数据库并创建了一个虚拟表，并在那里成功运行了不区分大小写的查询。

我可以在这里研究什么想法吗？

已编辑

这是@Sam 给出的答案中的语句的输出。 非常奇怪的是，服务器和数据库都定义了不区分大小写，但各个列却区分大小写。 Create Table 语句不包含排序规则信息 - 仅包含排序规则 问题：数据库为CI时，为什么使用表名的查询区分大小写

Server Level Collation
-----------------------------
SQL_Latin1_General_CP1_CI_AS

Database Level Collation
------------------------------
SQL_Latin1_General_CP1_CI_AI

Name          Owner  Type       Created_datetime
------------- ------ ---------- -----------------------
ProfitCenter  dbo    user table 2009-08-06 13:02:56.180



Column_name                  Type        Length  Collation
---------------------------- ----------- ------- -------------------------------
ProfitCenterID               int         4       NULL
HierarchyNodeID              int         4       NULL
ProfitCenterStatusID         int         4       NULL
BICProfitCenterNumber        varchar     10      SQL_Latin1_General_CP1_CS_AS
ProfitCenterName             varchar     255     SQL_Latin1_General_CP1_CS_AS
BICDistrictNumber            char        10      SQL_Latin1_General_CP1_CS_AS
BICClientNumber              varchar     10      SQL_Latin1_General_CP1_CS_AS
ManagerEmail                 varchar     255     SQL_Latin1_General_CP1_CS_AS
ManagerFirstName             varchar     255     SQL_Latin1_General_CP1_CS_AS
ManagerLastName              varchar     255     SQL_Latin1_General_CP1_CS_AS
PCOpenDate                   datetime    8       NULL
PCCloseDate                  datetime    8       NULL
LastDayOperation             datetime    8       NULL
ContractType                 char        10      SQL_Latin1_General_CP1_CS_AS
ContractTypeDesc             varchar     50      SQL_Latin1_General_CP1_CS_AS
CBSPCTypeCode                char        3       SQL_Latin1_General_CP1_CS_AS
CBSPCTypeDesc                varchar     50      SQL_Latin1_General_CP1_CS_AS
SBCSPCFlag                   char        1       SQL_Latin1_General_CP1_CS_AS
SBCSPCGroupCode              char        3       SQL_Latin1_General_CP1_CS_AS
SBCSPCRate                   decimal     9       NULL
SBCSPCComponent              varchar     10      SQL_Latin1_General_CP1_CS_AS
SBCSPCAccount                varchar     10      SQL_Latin1_General_CP1_CS_AS
PaymentTerms                 varchar     25      SQL_Latin1_General_CP1_CS_AS
RiskRate                     varchar     25      SQL_Latin1_General_CP1_CS_AS
RiskRateCapFlag              varchar     3       SQL_Latin1_General_CP1_CS_AS
RiskCapRate                  numeric     9       NULL
BICAddedDateTime             datetime    8       NULL
BICUpdatedDateTime           datetime    8       NULL


Identity        Seed  Increment  Not For Replication
--------------- ----- ---------- -------------------
ProfitCenterID  1     1          1


RowGuidCol
------------------------------
No rowguidcol column defined.


Data_located_on_filegroup
--------------------------
PRIMARY


index_name                                 index_description                        index_keys
------------------------------------------ ---------------------------------------- ----------------------
ProfitCenter_PK                            clustered, unique located on PRIMARY     ProfitCenterID
ProfitCenter_Unique_BICProfitCenterNumber  nonclustered, unique located on PRIMARY  BICProfitCenterNumber


No constraints are defined on object 'dbo.ProfitCenter', or you do not have permissions.

No foreign keys reference table 'dbo.ProfitCenter', or you do not have permissions on referencing tables.
No views with schema binding reference table 'dbo.ProfitCenter'.

Server default collation
----------------------------------------------------------------
Latin1-General, case-insensitive, accent-sensitive, 
kanatype-insensitive, width-insensitive for Unicode Data, 
SQL Server Sort Order 52 on Code Page 1252 for non-Unicode Data

[EDIT] 经过多次尝试不同的组合后，突然间，数据库不再区分大小写。 魔法！？

Answer 1

很奇怪。 也许这些命令可以帮助您追踪问题：

SELECT SERVERPROPERTY('Collation') AS 'Server Level Collation'

To see your default database collation:

SELECT DATABASEPROPERTYEX('Pubs', 'Collation') AS 'Database Level Collation'

To see column level collations of Customers table:

EXEC sp_help 'dbo.Customers'

To see server level collation settings in SQL Server 2000 as well as the previous versions:

EXEC sp_helpsort

To a listing of all available collations in SQL Server 2000:

SELECT * FROM ::fn_helpcollations()

For further information about specific collations:

SELECT COLLATIONPROPERTY('German_PhoneBook_CI_AS', 'CodePage')

SELECT COLLATIONPROPERTY('French_CI_AS', 'LCID')

SELECT COLLATIONPROPERTY('Latin1_General_CI_AS', 'ComparisonStyle')

我的第一个想法是您有一个 SET 选项 打开 - 尽管我从未听说过 CS 选项。

也许尝试通过 SQLCMD 运行查询，看看会发生什么。