Copy table to another with index constrait

Question

How to Copy Table to another with Index constraint also in sql

Bharathi Raja · Answer

CREATE PROCEDURE [dbo].[spCloneTableStructure] @SourceSchema nvarchar(255), @SourceTable nvarchar(255), @DestinationSchema nvarchar(255), @DestinationTable nvarchar(255), @RecreateIfExists bit = 0 AS BEGIN /* Clones an existing table to another table (without data) Optionally drops and re-creates target table Copies: * Structure * Primary key * Indexes (including ASC / DESC , included columns, filters) * Constraints ( and unique constraints) DOES NOT copy: * Triggers * File groups * Probably a lot of other things Note: Assumes that you name ( unique ) constraints with the table name in it ( in order to not duplicate constraint names) */ SET NOCOUNT ON ; BEGIN TRANSACTION --drop the table if EXISTS ( SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = @DestinationSchema AND TABLE_NAME = @DestinationTable) BEGIN if @RecreateIfExists = 1 BEGIN exec ( 'DROP TABLE [' + @DestinationSchema + '].[' + @DestinationTable + ']' ) END ELSE RETURN END --create the table exec ( 'SELECT TOP (0) * INTO [' + @DestinationSchema + '].[' + @DestinationTable + '] FROM [' + @SourceSchema + '].[' + @SourceTable + ']' ) DECLARE @PKSchema nvarchar(255), @PKName nvarchar(255) SELECT TOP 1 @PKSchema = CONSTRAINT_SCHEMA, @PKName = CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE TABLE_SCHEMA = @SourceSchema AND TABLE_NAME = @SourceTable AND CONSTRAINT_TYPE = 'PRIMARY KEY' --create primary key IF NOT @PKSchema IS NULL AND NOT @PKName IS NULL BEGIN DECLARE @PKColumns nvarchar( MAX ) SET @PKColumns = '' SELECT @PKColumns = @PKColumns + '[' + COLUMN_NAME + '],' FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE where TABLE_NAME = @SourceTable and TABLE_SCHEMA = @SourceSchema AND CONSTRAINT_SCHEMA = @PKSchema AND CONSTRAINT_NAME= @PKName ORDER BY ORDINAL_POSITION SET @PKColumns = LEFT (@PKColumns, LEN(@PKColumns) - 1) exec ( 'ALTER TABLE [' + @DestinationSchema + '].[' + @DestinationTable + '] ADD CONSTRAINT [PK_' + @DestinationTable + '] PRIMARY KEY CLUSTERED (' + @PKColumns + ')' ); END --create other indexes DECLARE @IndexId int , @IndexName nvarchar(255), @IsUnique bit , @IsUniqueConstraint bit , @FilterDefinition nvarchar( max ) DECLARE indexcursor CURSOR FOR SELECT index_id, name , is_unique, is_unique_constraint, filter_definition FROM sys.indexes WHERE type = 2 and object_id = object_id( '[' + @SourceSchema + '].[' + @SourceTable + ']' ) OPEN indexcursor; FETCH NEXT FROM indexcursor INTO @IndexId, @IndexName, @IsUnique, @IsUniqueConstraint, @FilterDefinition; WHILE @@FETCH_STATUS = 0 BEGIN DECLARE @ Unique nvarchar(255) SET @ Unique = CASE WHEN @IsUnique = 1 THEN ' UNIQUE ' ELSE '' END DECLARE @KeyColumns nvarchar( max ), @IncludedColumns nvarchar( max ) SET @KeyColumns = '' SET @IncludedColumns = '' select @KeyColumns = @KeyColumns + '[' + c. name + '] ' + CASE WHEN is_descending_key = 1 THEN 'DESC' ELSE 'ASC' END + ',' from sys.index_columns ic inner join sys.columns c ON c.object_id = ic.object_id and c.column_id = ic.column_id where index_id = @IndexId and ic.object_id = object_id( '[' + @SourceSchema + '].[' + @SourceTable + ']' ) and key_ordinal > 0 order by index_column_id select @IncludedColumns = @IncludedColumns + '[' + c. name + '],' from sys.index_columns ic inner join sys.columns c ON c.object_id = ic.object_id and c.column_id = ic.column_id where index_id = @IndexId and ic.object_id = object_id( '[' + @SourceSchema + '].[' + @SourceTable + ']' ) and key_ordinal = 0 order by index_column_id IF LEN(@KeyColumns) > 0 SET @KeyColumns = LEFT (@KeyColumns, LEN(@KeyColumns) - 1) IF LEN(@IncludedColumns) > 0 BEGIN SET @IncludedColumns = ' INCLUDE (' + LEFT (@IncludedColumns, LEN(@IncludedColumns) - 1) + ')' END IF @FilterDefinition IS NULL SET @FilterDefinition = '' ELSE SET @FilterDefinition = 'WHERE ' + @FilterDefinition + ' ' if @IsUniqueConstraint = 0 exec ( 'CREATE ' + @ Unique + ' NONCLUSTERED INDEX [' + @IndexName + '] ON [' + @DestinationSchema + '].[' + @DestinationTable + '] (' + @KeyColumns + ')' + @IncludedColumns + @FilterDefinition) ELSE BEGIN SET @IndexName = REPLACE (@IndexName, @SourceTable, @DestinationTable) exec ( 'ALTER TABLE [' + @DestinationSchema + '].[' + @DestinationTable + '] ADD CONSTRAINT [' + @IndexName + '] UNIQUE NONCLUSTERED (' + @KeyColumns + ')' ); END FETCH NEXT FROM indexcursor INTO @IndexId, @IndexName, @IsUnique, @IsUniqueConstraint, @FilterDefinition; END ; CLOSE indexcursor; DEALLOCATE indexcursor; --create constraints DECLARE @ConstraintName nvarchar( max ), @CheckClause nvarchar( max ) DECLARE constraintcursor CURSOR FOR SELECT REPLACE (c.CONSTRAINT_NAME, @SourceTable, @DestinationTable), CHECK_CLAUSE from INFORMATION_SCHEMA.CONSTRAINT_TABLE_USAGE t INNER JOIN INFORMATION_SCHEMA.CHECK_CONSTRAINTS c ON c.CONSTRAINT_SCHEMA = TABLE_SCHEMA AND c.CONSTRAINT_NAME = t.CONSTRAINT_NAME WHERE TABLE_SCHEMA = @SourceSchema AND TABLE_NAME = @SourceTable OPEN constraintcursor; FETCH NEXT FROM constraintcursor INTO @ConstraintName, @CheckClause; WHILE @@FETCH_STATUS = 0 BEGIN exec ( 'ALTER TABLE [' + @DestinationSchema + '].[' + @DestinationTable + '] WITH CHECK ADD CONSTRAINT [' + @ConstraintName + '] CHECK ' + @CheckClause) exec ( 'ALTER TABLE [' + @DestinationSchema + '].[' + @DestinationTable + '] CHECK CONSTRAINT [' + @ConstraintName + ']' ) FETCH NEXT FROM constraintcursor INTO @ConstraintName, @CheckClause; END ; CLOSE constraintcursor; DEALLOCATE constraintcursor; COMMIT TRANSACTION END

Amit Kumar · Answer

Hi, Visit the below url. https://social.msdn.microsoft.com/Forums/sqlserver/en-US/412a50fb-04bf-4476-8e22-cf04449e9351/copy-tables-with-all-constraints?forum=transactsql

Sagar Pandurang Kap · Answer

Hi, Refer to below link :- https://blog.sqlauthority.com/2007/08/15/sql-server-insert-data-from-one-table-to-another-table/ Hope it helps..

Copy table to another with index constrait

Answers (3)