Here, the SQL command checks if a table namedCompaniesexists, and if not, it creates a table with specified columns. Create Table Using Another Existing Table In SQL, we can create a new table by duplicating an
SQL CREATE TABLE Example The following example creates a table called "Persons" that contains five columns: PersonID, LastName, FirstName, Address, and City: ExampleGet your own SQL Server CREATETABLEPersons ( PersonID int, LastName varchar(255), ...
在 MySQL 中,可以使用以下 SQL 语句创建一个包含 MEDIUMINT 类型字段的表: CREATE TABLE example_table ( id INT PRIMARY KEY, medium_number MEDIUMINT ); 在上述代码中,example_table表包含 id 和 medium_number 两个字段,其中 medium_number 的数据类型为 MEDIUMINT。 INT/INTEGER INT是一种整数数据类型,用于...
); table_name - is the name of the table. column_name1, column_name2... - is the name of the columns datatype - is the datatype for the column like char, date, number etc.For Example: If you want to create the employee table, the statement would be like,CREATE...
Now if we want to create a table called laboratory with two foreign keys and a primary key constraint, also using check constraint to check amount entered should be greater than 0, how we execute it with SQL create table statement:
Create a Table with SQL Create a Table with SQLModel - Use the Engine Create Rows - Use the Session - INSERT Automatic IDs, None Defaults, and Refreshing Data Read Data - SELECT Filter Data - WHERE Indexes - Optimize Queries Read One Row Read a Range of Data - LIMIT and ...
SQL CREATE TABLE Statement Example The following example creates a table named product with columns named product_nbr, product_name, product_status_code, start_date, end_date and raw_material_cost_amt. This SQL CREATE TABLE Statement is executed: ...
1 CREATE TABLE example_db.table_hash 2 ( 3 k1 BIGINT, 4 k2 LARGEINT, 5 v1 VARCHAR(2048), 6 v2 SMALLINT DEFAULT "10" 7 ) 8 ENGINE=olap 9 UNIQUE KEY(k1, k2) 10 DISTRIBUTED BY HASH (k1, k2) BUCKETS 32 11 PROPERTIES( 12 "storage_type"="row", 13 "storage_medium" = "SSD"...
Example: create table employee (first varchar(15), last varchar(20), age number(3), address varchar(30), city varchar(20), state varchar(20)); To create a new table, enter the keywordscreate tablefollowed by the table name, followed by an open parenthesis, followed by the first column...
If a table or other object of the given name already exists in the specified database and schema context or the user has no permissions to create a table, an error is raised. IF NOT EXISTS If the optionalIF NOT EXISTSis specified, then the statement creates the table if it does not al...