明显错误的超过 8K 行长度消息

Question

在尝试更改 SQL Server 表时添加 DATE 和 FLOAT 列。我收到一条消息：

警告：表“CustomerTransactions”已创建，但其最大行大小超过了允许的最大值 8060 字节。如果结果行超过大小限制，则对该表的 INSERT 或 UPDATE 将失败。

我知道 8K 的限制，但是我很难过，因为桌子没有超过 8K。

DDL 和故障贴在下面。不知道去哪里看得更远。有什么建议吗？

更改表：

            ALTER TABLE [dbo].[CustomerTransactions] 
            ADD 
                NumericDate FLOAT,
                FirstDayOfWeek DATE,
                LastDayOfWeek DATE,
                NFirstDayOfWeek FLOAT,
                NLastDayOfWeek FLOAT,
                FirstDayOfMonth DATE,
                LastDayOfMonth DATE,
                NFirstDayOfMonth FLOAT,
                NLastDayOfMonth FLOAT,
                HalfMonthStart DATE,
                HalfMonthEnd DATE,
                NHalfMonthStart FLOAT,
                NHalfMonthEnd FLOAT,
                HalfOfMonth INT,
                FirstDayOfQuarter DATE,
                LastDayOfQuarter DATE,
                NFirstDayOfQuarter FLOAT,
                NLastDayOfQuarter FLOAT,
                FirstDayOfYear DATE,
                LastDayOfYear DATE,
                NFirstDayOfYear FLOAT,
                NLastDayOfYear FLOAT

系统列总数

select count(*) NumCols, SUM(sc.length) SumLength
from syscolumns sc  
inner join systypes st on sc.xtype = st.xtype  
where id = object_id('CustomerTransactions')

NumCols SumLength
------- ---------
64      4463

系统列分解

select sc.name, st.name, sc.length
from syscolumns sc
left join systypes st
on sc.xtype = st.xtype
where id = object_id('CustomerTransactions')

name                      name                  length
------------------------  --------------------  -------
RowType                   varchar                   40
ReportCategory            varchar                   255
Date                      date                      3
TxnId                     varchar                   26
TxnType                   varchar                   255
AccountId                 varchar                   36
AccountType               varchar                   21
Account                   varchar                   255
AccountNameLong           varchar                   159
Amount                    decimal                   9
Reference                 varchar                   255
AmountPastDue             decimal                   9
AmountDue                 decimal                   9
Rep                       varchar                   255
RepRegion                 varchar                   255
RepLevel1                 varchar                   255
Memo                      varchar                   -1
Phone                     varchar                   20
CustomerName              varchar                   255
CustomerAccountNumber     varchar                   255
PaidStatus                varchar                   255
LastPaymentDate           date                      3
LastPaymentType           varchar                   255
LastPaymentAmount         decimal                   9
ReferenceNumber           varchar                   20
Referal                   varchar                   255
ReferalNotes              varchar                   255
PurchaseNumber            int                       4
TotalPurchase             decimal                   9
AccountHierarchyL1        varchar                   50
AccountHierarchyL2        varchar                   50
AccountHierarchyL3        varchar                   50
AccountHierarchyL4        varchar                   50
AccountHierarchyL5        varchar                   50
AccountOtherDisplayValue  varchar                   50
ReportHeader1             varchar                   50
ReportHeader2             varchar                   50
ReportHeader3             varchar                   50
ReportHeader4             varchar                   50
ReportHeader5             varchar                   50
ReportHeader6             varchar                   50
ReportHeader7             varchar                   50
NumericDate               float                     8
FirstDayOfWeek            date                      3
LastDayOfWeek             date                      3
NFirstDayOfWeek           float                     8
NLastDayOfWeek            float                     8
FirstDayOfMonth           date                      3
LastDayOfMonth            date                      3
NFirstDayOfMonth          float                     8
NLastDayOfMonth           float                     8
HalfMonthStart            date                      3
HalfMonthEnd              date                      3
NHalfMonthStart           float                     8
NHalfMonthEnd             float                     8
HalfOfMonth               int                       4
FirstDayOfQuarter         date                      3
LastDayOfQuarter          date                      3
NFirstDayOfQuarter        float                     8
NLastDayOfQuarter         float                     8
FirstDayOfYear            date                      3
LastDayOfYear             date                      3
NFirstDayOfYear           float                     8
NLastDayOfYear            float                     8

Answer 1

这可能是由于先前的更改（特别是现有列宽的更改）仍反映在基础页面结构中。尝试重建表或删除/重新创建聚集索引以回收该空间。