select diSTinCt *
from tablename as alias;

select alias.*, columnname, alias.columnname
from tablename as alias;

select dbname1.schemaname1.tablename1.columnname1, schemaname2.tablename2.columnname2, tablename3.columnname3
from dbname1.schemaname1.tablename1, dbname2.schemaname2.tablename2, schemaname3.tablename3;

SELECT c.s.v.a, w.b AS x
FROM xxx yy, cc.ss.vv AS sub
cross JOIN aB c
NATURAL INNER JOIN cd.er ON cd.er.id = aBc.id
LEFT OUTER join qwe ON qwe.id = aBc.id
UNION JOIN jd
ORDER BY yyy, zzz;

select a.*, columnname1 as alias1
from t x inner join (select * from dbname1.tablename1) fromalias1;

SELECT DISTINCT PRODUCT.ProductID, PRODUCT.Name_
FROM Production.Product PRODUCT
INNER JOIN Sales.SalesOrderDetail DETAIL
ON PRODUCT.ProductID = DETAIL.ProductID
OR PRODUCT.rowguid = DETAIL.rowguid;

SELECT PRODUCT.ProductID, PRODUCT.Name_
FROM Production.Product PRODUCT
INNER JOIN Sales.SalesOrderDetail DETAIL
ON PRODUCT.ProductID = DETAIL.ProductID
UNION
    SELECT PRODUCT.ProductID, PRODUCT.Name_
    FROM Production.Product PRODUCT
    INNER JOIN Sales.SalesOrderDetail DETAIL
    ON PRODUCT.rowguid = DETAIL.rowguid;

SELECT
    Product.ProductID,
    Product.ProductName,
    Product.ProductNumber,
    CostMeasure.UnitMeasureCode,
    CostMeasure.Name AS CostMeasureName,
    ProductVendor.AverageLeadTime,
    ProductVendor.StandardPrice,
    ProductReview.ReviewerName,
    ProductReview.Rating,
    Product.ProductCategory,
    Product.ProductSubCategory
FROM Product Product
INNER JOIN Production.ProductModel
ON ProductModel.ProductModelID = Product.ProductModelID
LEFT JOIN Production.ProductReview
ON ProductReview.ProductID = Product.ProductID
LEFT JOIN Purchasing.ProductVendor
ON ProductVendor.ProductID = Product.ProductID
LEFT JOIN Production.UnitMeasure CostMeasure
ON ProductVendor.UnitMeasureCode = CostMeasure.UnitMeasureCode;

SELECT DISTINCT
    Product.ProductID,
    Product.Name AS ProductName,
    Product.ProductNumber,
    CostMeasure.UnitMeasureCode,
    CostMeasure.Name AS CostMeasureName,
    ProductVendor.AverageLeadTime,
    ProductVendor.StandardPrice,
    ProductReview.ReviewerName,
    ProductReview.Rating,
    ProductCategory.Name AS CategoryName,
    ProductSubCategory.Name AS SubCategoryName
FROM Production.Product
INNER JOIN Production.ProductSubCategory
ON ProductSubCategory.ProductSubcategoryID = Product.ProductSubcategoryID
LEFT JOIN Production.ProductCategory
ON ProductCategory.ProductCategoryID = ProductSubCategory.ProductCategoryID
RIGHT JOIN Production.UnitMeasure SizeUnitMeasureCode
ON Product.SizeUnitMeasureCode = SizeUnitMeasureCode.UnitMeasureCode
FULL JOIN Production.UnitMeasure WeightUnitMeasureCode
ON Product.WeightUnitMeasureCode = WeightUnitMeasureCode.UnitMeasureCode
INNER OUTER JOIN Production.ProductModel
ON ProductModel.ProductModelID = Product.ProductModelID
NATURAL LEFT OUTER JOIN Production.ProductModelIllustration
ON ProductModel.ProductModelID = ProductModelIllustration.ProductModelID
NATURAL UNION JOIN Production.ProductModelProductDescriptionCulture
ON ProductModelProductDescriptionCulture.ProductModelID = ProductModel.ProductModelID
NATURAL FULL OUTER JOIN Production.ProductDescription
ON ProductDescription.ProductDescriptionID = ProductModelProductDescriptionCulture.ProductDescriptionID
CROSS JOIN Production.ProductReview
ON ProductReview.ProductID = Product.ProductID
NATURAL INNER JOIN Purchasing.ProductVendor
ON ProductVendor.ProductID = Product.ProductID
LEFT JOIN Production.UnitMeasure CostMeasure
USING (MeasureID, Unit)
ORDER BY Product.ProductID DESC;

SELECT ALL
    Product.ProductID,
    Product.Name AS ProductName,
    Product.ProductNumber,
    ProductCategory.Name AS ProductCategory,
    ProductSubCategory.Name AS ProductSubCategory,
    Product.ProductModelID
-- INTO Product
FROM Production.Product
INNER JOIN Production.ProductSubCategory
ON ProductSubCategory.ProductSubcategoryID = Product.ProductSubcategoryID
UNION JOIN Production.ProductCategory
ON ProductCategory.ProductCategoryID = ProductSubCategory.ProductCategoryID
ORDER BY Product.ModifiedDate DESC;

