This would create a new table calledsuppliersthat included all columns from thecompaniestable. If there were records in thecompaniestable, then the new suppliers table would also contain the records selected by the SELECT statement. Syntax #2 - Copying selected columns from another table The basic...
Question:How can I create a SQL table from another table without copying any values from the old table? Answer:To do this, the SQL CREATE TABLE syntax is: CREATE TABLE new_table AS (SELECT * FROM old_table WHERE 1=2); For example: ...
simplify the process, U-SQL provides the ability to create a table from a U-SQL query expression. TheCREATE TABLE ASstatement will infer the schema from the query expression and will create a clustered table, thus the clustered index needs to be provided as part of theCREATE TABLE AS...
CREATE TABLE Using Another Table A copy of an existing table can also be created usingCREATE TABLE. The following SQL creates a new table called "TestTables" (which is a copy of the "Customers" table): Example CREATETABLETestTableAS
AS FileTable Applies to: SQL Server 2012 (11.x) and later. Creates the new table as a FileTable. You don't specify columns because a FileTable has a fixed schema. For more information, see FileTables. column_name AS computed_column_expression An expression that defines the value of a ...
The IF NOT EXISTS clause can be used to create a table from scratch or to create a table using the structure of another table. The following two SQL statements are both valid: CREATE TABLE IF NOT EXISTS Customer (First_Name char(50), Last_Name char(50), Address char(50), City char(...
SQL複製 --Use hive formatCREATETABLEstudent (idINT,nameSTRING, ageINT)STOREDASORC;--Use data from another tableCREATETABLEstudent_copySTOREDASORCASSELECT*FROMstudent;--Specify table comment and propertiesCREATETABLEstudent (idINT,nameSTRING, ageINT)COMMENT'this is a comment...
Tip:The empty "Persons" table can now be filled with data with the SQLINSERT INTOstatement. Create Table Using Another Table A copy of an existing table can also be created usingCREATE TABLE. The new table gets the same column definitions. All columns or specific columns can be selected. ...
The syntax for the CREATE TABLE AS statement that copies all of the columns in Oracle/PLSQL is: CREATE TABLE new_table AS (SELECT * FROM old_table); Example Let's look at a CREATE TABLE AS example that shows how to create a table by copying all columns from another table. ...
FROM Persons INNER JOIN Orders ON Persons.Id_P=Orders.Id_P CREATE DATABASE 语句 CREATE DATABASE 用于创建数据库。 SQL CREATE DATABASE 语法 CREATE DATABASE database_name CREATE TABLE 语句 CREATE TABLE 语句用于创建数据库中的表。 SQL CREATE TABLE 语法 ...