Você pode ter um cursor passando por todas as suas tabelas no
xyz esquema e mova todos eles para o abc esquema:DECLARE TableCursor CURSOR FAST_FORWARD
FOR
-- get the table names for all tables in the 'xyz' schema
SELECT t.Name
FROM sys.tables t
WHERE schema_id = SCHEMA_ID('xyz')
DECLARE @TableName sysname
OPEN TableCursor
FETCH NEXT FROM TableCursor INTO @TableName
-- iterate over all tables found
WHILE @@FETCH_STATUS = 0
BEGIN
DECLARE @Stmt NVARCHAR(999)
-- construct T-SQL statement to move table to 'abc' schema
SET @Stmt = 'ALTER SCHEMA abc TRANSFER xyz.' + @TableName
EXEC (@Stmt)
FETCH NEXT FROM TableCursor INTO @TableName
END
CLOSE TableCursor
DEALLOCATE TableCursor
