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  • SqlServer数据库所有表生成C# Model实体类SQL语句

    select ROW_NUMBER() over (order by name)  as id,name into #t from sysobjects where xtype='U';
    declare @i int,@c int set @i=0
    select @c=count(1) from #t
    
    declare @Result varchar(max),@TableName varchar(50)
    set @Result=''
    print @Result
    while @i<@c
    begin
    
    set @i=@i+1
    select @TableName=name from #t where id=@i
    set @Result=@Result+ '
    /// <summary>
    ///  ' +  @TableName +    
    '    
    /// </summary>
    [Table("'+@TableName+'")]
    public class ' + @TableName + '
    {'
    
    select @Result = @Result + '
        /// <summary>
        /// ' +  CONVERT(NVARCHAR(500), ISNULL(ColName, '')) +    
    '    
        /// </summary>'+case when ColumnName='id' then '
        [Key]' else '' end+'
        public ' + ColumnType + NullableSign + ' ' + ColumnName + ' { get; set; }
    '
    from
    (
        SELECT
            replace(col.name, ' ', '_') ColumnName,
            column_id ColumnId,
            prop.value ColName,
            case typ.name
                when 'bigint' then 'long'
                when 'binary' then 'byte[]'
                when 'bit' then 'bool'
                when 'char' then 'string'
                when 'date' then 'DateTime'
                when 'datetime' then 'DateTime'
                when 'datetime2' then 'DateTime'
                when 'datetimeoffset' then 'DateTimeOffset'
                when 'decimal' then 'decimal'
                when 'float' then 'float'
                when 'image' then 'byte[]'
                when 'int' then 'int'
                when 'money' then 'decimal'
                when 'nchar' then 'char'
                when 'ntext' then 'string'
                when 'numeric' then 'decimal'
                when 'nvarchar' then 'string'
                when 'real' then 'double'
                when 'smalldatetime' then 'DateTime'
                when 'smallint' then 'short'
                when 'smallmoney' then 'decimal'
                when 'text' then 'string'
                when 'time' then 'TimeSpan'
                when 'timestamp' then 'DateTime'
                when 'tinyint' then 'byte'
                when 'uniqueidentifier' then 'Guid'
                when 'varbinary' then 'byte[]'
                when 'varchar' then 'string'
                else 'UNKNOWN_' + typ.name
            end ColumnType,
            case
                when col.is_nullable = 1 and typ.name in ('bigint', 'bit', 'date', 'datetime', 'datetime2', 'datetimeoffset', 'decimal', 'float', 'int', 'money', 'numeric', 'real', 'smalldatetime', 'smallint', 'smallmoney', 'time', 'tinyint', 'uniqueidentifier')
                then '?'
                else ''
            end NullableSign
        from sys.columns col
            join sys.types typ on
                col.system_type_id = typ.system_type_id AND col.user_type_id = typ.user_type_id
                LEFT JOIN sys.extended_properties prop ON col.object_id = prop.major_id AND col.column_id = prop.minor_id
        where object_id = object_id(@TableName)
    ) t
    
    set @Result = @Result  + '
    }'
    
    end 
    drop table #t
    print @Result

    根据

    【SQL骚操作】SqlServer数据库表生成C# Model实体类SQL语句

    进行修改

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  • 原文地址:https://www.cnblogs.com/wang0020/p/13292229.html
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