SELECT Customers.CompanyName, Suppliers.ComPany.Name FROM Customers, Suppliers WHERE Customers.City=Suppliers.City 例:找出产品库存量大于同一种产品的定单的数量的产品和定单 SELECT ProductName,OrderID, UnitInStock, Quantity FROM Products, [Order Deails] WHERE Product.productID=[Order Details].ProductID...
INSERTINTOCustomers(CustomerName,ContactName,Address,City,PostalCode,Country)SELECTSupplierName,ContactName,Address,City,PostalCode,CountryFROMSuppliers; 仅将德国供应商复制到 "Customers": 代码语言:sql 复制 INSERTINTOCustomers(CustomerName,City,Country)SELECTSupplierName,City,CountryFROMSuppliersWHERECountry='Germa...
[, ...] ) ] ] |function_name ( [ argument [, ...] ] ) [ AS ] alias [ ( column_alias [, ...] | column_definition [, ...] ) ] |function_name ( [ argument [, ...] ] ) AS ( column_definition [, ...] ) |from_item [ NATURAL ] join_type from_item [ ON join_...
SELECTProductName, UnitPrice*(UnitsInStock+COALESCE(UnitsOnOrder,0))FROMProducts; MS Access MS Access 的IsNull()函数在表达式为 NULL 值时返回 TRUE(-1),否则返回 FALSE(0): SELECTProductName, UnitPrice*(UnitsInStock+IIF(IsNull(UnitsOnOrder),0, UnitsOnOrder))FROMProducts; Oracle Oracle 的NVL(...
Product Description Company Info. Basic Info. Model NO. 6WG1 Engine Model 6wg1 Machine Model Sh800-6 Stock Status Available Delivery Time 1-3 Days Engine Type Diesel Part Number 1811004211 1-87618275-0 Product Name Starter,...
SQL SELECT INTO 语句SELECT INTO 语句将数据从一个表复制到一个新表中。SELECT INTO 语法将所有列复制到新表中: {代码...} 只复制一些列到新表中: {代码...
FROMCustomers; 以下SQL 语句仅将德国客户复制到新表中: SELECT*INTOCustomersGermany FROMCustomers WHERECountry='Germany'; 以下SQL 语句将来自多个表的数据复制到新表中: SELECTCustomers.CustomerName, Orders.OrderID INTOCustomersOrderBackup2017 FROMCustomers ...
In addition to pseudocolumns, the following query functions are provided (for details, seeHierarchical Recursion Query Functions): sys_connect_by_path(col, separtor): returns the connection path from the root node to the current row. Thecolparameter indicates the name of the column displayed in...
Product Name Glass mosaic tile Materials Glass mix aluminum Pattern Strip Mounted Technic Mesh Mounted Sheet Size 300x300mm Chip Size Thickness 8mm Supply Ability 5000 Square Meters Per Month MOQ 72 square meter Payment L/C, T/T, Delivery Time Within 15-25 ...
Product Name Liner Set Product Type Slect Parts Transport Package Normal Packingwooden Box,Standar Packing with Safe Specification 6 cylinder HS Code 8409999990 Production Capacity 50000pieces/Year Product Description ISP Select Parts excavator engine parts ZX120 ZX230 4BG1 6BG...