整型一共有五种:TINYINT、SMALLINT、MEDIUMINT、INT、BIGINT,其中TINYINT属于整型类型中最小的,存储的值必须为整型的数值,否则会被默认转换或报错(注:取决于MySQL运行时设置的SQL_MODE值要求)。 接下来要讲数据类型测试,今天先讲“布尔类型BOOL/BOOLEAN 与 微整型TINYINT”,枚举类型ENUM和“集合类型 SET”的测试内...
1 row in set (0.00 sec) root@localhost: 00:33 [7308][db_hlf]> id 数字类型不指定默认插入是0 insert into tbl_setenum(setc,enumc)value(1,2); root@localhost: 00:33 [7308][db_hlf]>insert into tbl_setenum(setc,enumc)value(1,2); Query OK, 1 row affected, 1 warning (0.01 sec...
String name = "value"; if (!IEnum.class.isAssignableFrom(enumClassType)) { name = (String)findEnumValueFieldName(this.enumClassType).orElseThrow(() -> { return new IllegalArgumentException(String.format("Could not find @EnumValue in Class: %s.", this.enumClassType.getName())); });...
enumLoopType{None,// value is 0Daily,// value is 1Weekly=7,Monthly,// value is 8Yeayly,// value is 9DayGap=15,WeekGap,// value is 16MonthGap,// value is 17YearGap// value is 18} (4)enum枚举成员可以用来作为位标志,同时支持位的操作(位与,位或等等),例如: 代码语言:javascript 代...
{foreach(EnumConfigFunc valueinEnum.GetValues(typeof(EnumConfigFunc))) {if(((EnumConfigFunc)model.ConfigFunc & value) ==value) { configfuncValues.Add((int)value); } } } [Flags]publicenumEnumConfigFunc {//////存心节///[Description("存心节")] ScriptureSetting=1<<...
A SQL Server user-defined type (UDT). Structured30 A special data type for specifying structured data contained in table-valued parameters. Date31 Date data ranging in value from January 1,1 AD through December 31, 9999 AD. Time32
若是给枚举类型字段指定的默认值,没有在枚举类型值域列表中出现,则会出现SQL语法错误,导致SQL语句执行失败。 d. 修改枚举类型字段定义,尾部追加枚举元素 代码语言:javascript 代码运行次数:0 运行 AI代码解释 root@localhost:mysqlops02:39:27>ALTERTABLEmysqlops_set_enumMODIFYWork_Optionenum(‘DBA’,'SA’,'C++...
The following console application demonstrates how to perform a bulk load that copies the value in the identity column of the source table to the corresponding column in the destination table, instead of generating a new value for each row's identity column. ...
Bug #84701 Overflow Exception - 64 bit enum value as parameter cast to Int32 Submitted: 28 Jan 2017 18:22Modified: 24 Nov 2020 16:42 Reporter: Tim Wilkens Email Updates: Status: Closed Impact on me: None Category: Connector / NETSeverity: S3 (Non-critical) Version: 6.9.9OS: ...
Get sql server return value in asp.net get the databasename from web.config Get the last inserted row's Identity (ID) using DataTable and Row getting an error -> "Min (1) must be less than or equal to max (-1) in a Range object." while querying DataTable using Select method ...