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[CreateTableFromFieldListIncludingTypes] Creating table from Field List Dynamically including type, scale and precision #table #create #dynamic
SELECT
-- Numeric DataTypes
CASE WHEN [f].[DataType] IN ('bigint', 'int', 'smallint', 'tinyint', 'bit', 'decimal', 'numeric', 'money', 'smallmoney', 'float', 'real')
THEN CASE WHEN [f].[DataType] IN ('decimal', 'numeric')
THEN '(' + CAST(f.[Precision] AS VARCHAR(5)) + ',' + CAST(f.[Scale] AS VARCHAR(5)) + ')'
WHEN [f].[DataType] IN ('float', 'real')
THEN ''
--THEN '(' + CAST(f.[Precision] AS VARCHAR(5)) + ')'
WHEN [f].[DataType] IN ('bigint', 'int', 'smallint', 'tinyint', 'bit', 'money', 'smallmoney')
THEN ''
ELSE ''
END
-- Date/Time DataTypes
WHEN [f].[DataType] IN ('datetime', 'datetime2', 'smalldatetime', 'date', 'time', 'datetimeoffset', 'timestamp')
THEN CASE WHEN [f].[DataType] IN ('datetime2', 'datetimeoffset', 'time')
THEN '(' + CAST(f.[Scale] AS VARCHAR(5)) + ')'
WHEN [f].[DataType] IN ('datetime', 'smalldatetime', 'date', 'time')
THEN ''
ELSE ''
END
-- char string types
WHEN [f].[DataType] IN ('char', 'nchar', 'varchar', 'nvarchar', 'varbinary', 'binary', 'text', 'ntext')
THEN CASE WHEN [f].[DataType] IN ('varchar', 'char', 'varbinary', 'binary')
THEN '(' + CASE WHEN f.[MaxLength] = -1
THEN 'MAX'
ELSE CAST(f.[MaxLength] AS VARCHAR(5))
END + ')'
WHEN [f].[DataType] IN ('nvarchar', 'nchar')
THEN '(' + CASE WHEN f.[MaxLength] = -1
THEN 'MAX'
ELSE CAST(f.[MaxLength] / 2 AS VARCHAR(5))
END + ')'
WHEN [f].[DataType] IN ('binary', 'text', 'ntext')
THEN ''
ELSE ''
END
-- spatial
WHEN [f].[DataType] IN ('geography', 'geometry', 'hierarchyid')
THEN CASE WHEN [f].[DataType] IN ('geography', 'geometry', 'hierarchyid')
THEN ''
ELSE ''
END
-- other types
WHEN [f].[DataType] IN ('sql_variant', 'uniqueidentifier', 'xml', 'image', 'sysname')
THEN CASE WHEN [f].[DataType] IN ('sql_variant', 'uniqueidentifier', 'xml', 'image', 'sysname')
THEN ''
ELSE ''
END
END
/*
-- Just keeping this for now for possible FUTURE
CASE WHEN c.collation_name IS NOT NULL AND c.system_type_id = c.user_type_id
THEN ' COLLATE ' + c.collation_name
ELSE ''
END +
CASE WHEN c.is_nullable = 1
THEN ' NULL'
ELSE ' NOT NULL'
END +
CASE WHEN c.default_object_id != 0
THEN ' CONSTRAINT [' + OBJECT_NAME(c.default_object_id) + ']' +
' DEFAULT ' + OBJECT_DEFINITION(c.default_object_id)
ELSE ''
END +
CASE WHEN cc.[object_id] IS NOT NULL
THEN ' CONSTRAINT [' + cc.name + '] CHECK ' + cc.[definition]
ELSE ''
END +
CASE WHEN c.is_identity = 1
THEN ' IDENTITY(' + CAST(IDENTITYPROPERTY(c.[object_id], 'SeedValue') AS VARCHAR(5)) + ',' +
CAST(IDENTITYPROPERTY(c.[object_id], 'IncrementValue') AS VARCHAR(5)) + ')'
ELSE ''
END
*/
+ ',' + CHAR(13) + CHAR(10)
FROM
[dbo].[Fields] AS [f]
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