很显然，“分”列是主键“PK_波段”的一部分，在列上有索引或者主键的情况下是不允许直接修改列的类型的。如果想修改，需要先删除主键，然后修改类型，之后如果主键是必须的，那么就重新创建主键。
"Simple" SQL to check for alpha or numeric charcters isn't working right "String or binary data would be truncated.\r\nThe statement has been terminated." "String or binary data would be truncated" and field specifications “Unable to enlist in the transaction” with Oracle linked server...
TEXT数据类型用于存储大量文本数据,其容量理论上为1 到2的31次方-1 (2, 147, 483, 647)个字节,在实际应用时需要视硬盘的存储空间而定。 SQL Server 2000 以前的版本中,数据库中一个TEXT 对象存储的实际上是一个指针,它指向一个个以8KB (8192 个字节)为单位的数据页(Data Page)。 这些数据页是动态增加并...
SET字段中存储数据时允许插入空串,如果插入多个值时,存储的顺序会按照列允许值声明的顺序重新排列然后保存,SET列插入错误值SQL报错无法保存。 INSERT INTO tb_set_1(v_1) VALUES ('medium,small') 1. SET字段检索,可以借助FIND_IN_SET()函数来检索包含指定值(单值)的列,或者直接使用=来查询精确匹配指定单值或...
where b.name in('decimal') order by d.name,a.name declare @sql2 varchar(1000) open tb fetch next from tb into @sql2 while @@fetch_status = 0 begin print @sql2 exec(@SQL2) fetch next from tb into @sql2 end close tb deallocate tb ...
Does anybody know how to convert in SQL a number from decimal to binary: Example: 'F' = 1111 I tried select convert(binary, 12.22) but SQL interprets the word 'binary' as Hex. Thanks a lot! Gilles SSC Journeyman Points: 88 More actions April 10, 2008 at 8:57 am #801027 Hi ...
We are in the upgrade project from SQL 2014 to SQL 2019. We are facing the issue when our decimal calculation difference between SQL 2014 and SQL 2019. From our test result SQL 2019 function AVG can handle only 6 decimal, if no datatype cast. But SQL
Multiplying by 1.0 turns an integer into a floatnumeric(13,1) and so works like a typecast, ...
Ok, so there's a way to get a reasonable floating point data type without using raw SQL statements. That really should be default, in my opinion, hence this ticket. I personally don't mind getting a double rather than a float. What's a use case where you'd need a float instead of...
zipacommentedNov 4, 2022 When I use a decimal variable in the query, EF Core converts it to decimal(18,2). The consequence is an erroneous calculation if the variable has more than two decimal places. For example: decimal c = 0.102m; var tmp = context .Payrolls .Where(x => x.Heal...