SQL Server’da Tablo Scriptini Oluşturmak
Herkese merhaba,
Bu yazıda SQL Server’da tablo scriptini oluşturma ile ilgili bilgi vermeye çalışacağım.
SQL Server’da bazı durumlarda seçtiğiniz bir tablonun scriptini kod ile oluşturmak isteyebilirsiniz.
Aşağıdaki kodu kullanarak bu işlemi rahatlıkla yapabilirsiniz.
DECLARE @TabloAdi sysname;
SELECT @TabloAdi = 'dbo.Products';
DECLARE @object_name sysname,
@object_id INT;
SELECT @object_name = '[' + s.name + '].[' + o.name + ']',
@object_id = o.[object_id]
FROM sys.objects o WITH (NOWAIT)
JOIN sys.schemas s WITH (NOWAIT)
ON o.[schema_id] = s.[schema_id]
WHERE s.name + '.' + o.name = @TabloAdi
AND o.[type] = 'U'
AND o.is_ms_shipped = 0;
DECLARE @SQL NVARCHAR(MAX) = N'';
WITH index_column
AS (SELECT ic.[object_id],
ic.index_id,
ic.is_descending_key,
ic.is_included_column,
c.name
FROM sys.index_columns ic WITH (NOWAIT)
JOIN sys.columns c WITH (NOWAIT)
ON ic.[object_id] = c.[object_id]
AND ic.column_id = c.column_id
WHERE ic.[object_id] = @object_id),
fk_columns
AS (SELECT k.constraint_object_id,
cname = c.name,
rcname = rc.name
FROM sys.foreign_key_columns k WITH (NOWAIT)
JOIN sys.columns rc WITH (NOWAIT)
ON rc.[object_id] = k.referenced_object_id
AND rc.column_id = k.referenced_column_id
JOIN sys.columns c WITH (NOWAIT)
ON c.[object_id] = k.parent_object_id
AND c.column_id = k.parent_column_id
WHERE k.parent_object_id = @object_id)
SELECT @SQL
= N'CREATE TABLE ' + @object_name + CHAR(13) + N'(' + CHAR(13)
+ STUFF(
(
SELECT CHAR(9) + ', [' + c.name + '] '
+ CASE
WHEN c.is_computed = 1 THEN
'AS ' + cc.[definition]
ELSE
UPPER(tp.name)
+ CASE
WHEN tp.name IN ( 'varchar', 'char', 'varbinary', 'binary', 'text' ) THEN
'(' + CASE
WHEN c.max_length = -1 THEN
'MAX'
ELSE
CAST(c.max_length AS VARCHAR(5))
END + ')'
WHEN tp.name IN ( 'nvarchar', 'nchar', 'ntext' ) THEN
'(' + CASE
WHEN c.max_length = -1 THEN
'MAX'
ELSE
CAST(c.max_length / 2 AS VARCHAR(5))
END + ')'
WHEN tp.name IN ( 'datetime2', 'time2', 'datetimeoffset' ) THEN
'(' + CAST(c.scale AS VARCHAR(5)) + ')'
WHEN tp.name = 'decimal' THEN
'(' + CAST(c.[precision] AS VARCHAR(5)) + ',' + CAST(c.scale AS VARCHAR(5)) + ')'
ELSE
''
END + CASE
WHEN c.collation_name IS NOT NULL THEN
' COLLATE ' + c.collation_name
ELSE
''
END + CASE
WHEN c.is_nullable = 1 THEN
' NULL'
ELSE
' NOT NULL'
END + CASE
WHEN dc.[definition] IS NOT NULL THEN
' DEFAULT' + dc.[definition]
ELSE
''
END
+ CASE
WHEN ic.is_identity = 1 THEN
' IDENTITY(' + CAST(ISNULL(ic.seed_value, '0') AS CHAR(1)) + ','
+ CAST(ISNULL(ic.increment_value, '1') AS CHAR(1)) + ')'
ELSE
''
END
END + CHAR(13)
FROM sys.columns c WITH (NOWAIT)
JOIN sys.types tp WITH (NOWAIT)
ON c.user_type_id = tp.user_type_id
LEFT JOIN sys.computed_columns cc WITH (NOWAIT)
ON c.[object_id] = cc.[object_id]
AND c.column_id = cc.column_id
LEFT JOIN sys.default_constraints dc WITH (NOWAIT)
ON c.default_object_id != 0
AND c.[object_id] = dc.parent_object_id
AND c.column_id = dc.parent_column_id
LEFT JOIN sys.identity_columns ic WITH (NOWAIT)
ON c.is_identity = 1
AND c.[object_id] = ic.[object_id]
AND c.column_id = ic.column_id
WHERE c.[object_id] = @object_id
ORDER BY c.column_id
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)'),
1,
2,
CHAR(9) + ' '
) + ISNULL(
(
SELECT CHAR(9) + ', CONSTRAINT [' + k.name + '] PRIMARY KEY (' +
(
SELECT STUFF(
(
SELECT ', [' + c.name + '] ' + CASE
WHEN ic.is_descending_key = 1 THEN
'DESC'
ELSE
'ASC'
END
FROM sys.index_columns ic WITH (NOWAIT)
JOIN sys.columns c WITH (NOWAIT)
ON c.[object_id] = ic.[object_id]
AND c.column_id = ic.column_id
WHERE ic.is_included_column = 0
AND ic.[object_id] = k.parent_object_id
AND ic.index_id = k.unique_index_id
FOR XML PATH(N''), TYPE
).value('.', 'NVARCHAR(MAX)'),
1 ,
2 ,
''
)
) + ')' + CHAR(13)
FROM sys.key_constraints k WITH (NOWAIT)
WHERE k.parent_object_id = @object_id
AND k.[type] = 'PK'
),
''
) + N')' + CHAR(13)
+ ISNULL(
(
SELECT
(
SELECT CHAR(13) + 'ALTER TABLE ' + @object_name + ' WITH' + CASE
WHEN fk.is_not_trusted = 1 THEN
' NOCHECK'
ELSE
' CHECK'
END + ' ADD CONSTRAINT [' + fk.name
+ '] FOREIGN KEY(' + STUFF(
(
SELECT ', [' + k.cname + ']'
FROM fk_columns k
WHERE k.constraint_object_id = fk.[object_id]
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)'),
1 ,
2 ,
''
) + ')' + ' REFERENCES [' + SCHEMA_NAME(ro.[schema_id]) + '].[' + ro.name
+ '] (' + STUFF(
(
SELECT ', [' + k.rcname + ']'
FROM fk_columns k
WHERE k.constraint_object_id = fk.[object_id]
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)'),
1 ,
2 ,
''
) + ')' + CASE
WHEN fk.delete_referential_action = 1 THEN
' ON DELETE CASCADE'
WHEN fk.delete_referential_action = 2 THEN
' ON DELETE SET NULL'
WHEN fk.delete_referential_action = 3 THEN
' ON DELETE SET DEFAULT'
ELSE
''
END + CASE
WHEN fk.update_referential_action = 1 THEN
' ON UPDATE CASCADE'
WHEN fk.update_referential_action = 2 THEN
' ON UPDATE SET NULL'
WHEN fk.update_referential_action = 3 THEN
' ON UPDATE SET DEFAULT'
ELSE
''
END + CHAR(13) + 'ALTER TABLE ' + @object_name + ' CHECK CONSTRAINT ['
+ fk.name + ']' + CHAR(13)
FROM sys.foreign_keys fk WITH (NOWAIT)
JOIN sys.objects ro WITH (NOWAIT)
ON ro.[object_id] = fk.referenced_object_id
WHERE fk.parent_object_id = @object_id
FOR XML PATH(N''), TYPE
).value('.', 'NVARCHAR(MAX)')
),
''
)
+ ISNULL(
(
(
SELECT CHAR(13) + 'CREATE' + CASE
WHEN i.is_unique = 1 THEN
' UNIQUE'
ELSE
''
END + ' NONCLUSTERED INDEX [' + i.name + '] ON ' + @object_name + ' (' + STUFF(
(
SELECT ', [' + c.name + ']' + CASE
WHEN c.is_descending_key = 1 THEN
' DESC'
ELSE
' ASC'
END
FROM index_column c
WHERE c.is_included_column = 0
AND c.index_id = i.index_id
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)'),
1 ,
2 ,
''
)
+ ')' + ISNULL(CHAR(13) + 'INCLUDE (' + STUFF(
(
SELECT ', [' + c.name + ']'
FROM index_column c
WHERE c.is_included_column = 1
AND c.index_id = i.index_id
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)') ,
1 ,
2 ,
''
) + ')',
''
) + CHAR(13)
FROM sys.indexes i WITH (NOWAIT)
WHERE i.[object_id] = @object_id
AND i.is_primary_key = 0
AND i.[type] = 2
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
),
''
);
PRINT @SQL;
--EXEC sys.sp_executesql @SQLYukarıdaki kodu Northwind veritabanında Products tablosu için denedim. Siz kendi tablolarınız için de deneyebilirsiniz.
Kodu çalıştırdığınızda aşağıdaki sonucu göreceksiniz.
Görüldüğü üzere seçili tablo scripti oluşmuş oldu.
Herkese çalışma hayatında ve yaşamında başarılar kolaylıklar.
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