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
CREATE TABLE costlist( id int not null auto_increment primary key, inputtime TIMESTAMP, name varchar( 6 ) , sum DECIMAL( 4, 1 ) default '0' , cost DECIMAL(4,1) default '0', balance DECIMAL( 4, 1 ) default '0', information TEXT, flag varchar(1) ) 2. create table user( id ...
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 SMALLINT 类型字段的表: CREATE TABLE example_table ( id INT PRIMARY KEY, small_number SMALLINT ); 在上述代码中,example_table表包含 id 和 small_number 两个字段,其中 small_number 的数据类型为 SMALLINT。 MEDIUMINT MEDIUMINT 是一种整数数据类型,用于...
sql: Oracle simple example table --Oracle 9i 实例数据脚本地址:$oracle_home/rdbms/admin/utlsampl.sql CREATE TABLE DEPT (DEPTNO NUMBER(2) CONSTRAINT PK_DEPT PRIMARY KEY, DNAME VARCHAR2(14) , LOC VARCHAR2(13) ) ; CREATE TABLE EMP (EMPNO NUMBER(4) CONSTRAINT PK_EMP PRIMARY KEY,...
For Example: If you want to create the employee table, the statement would be like,CREATE TABLE employee ( id number(5), name char(20), dept char(10), age number(2), salary number(10), location char(10) ); In Oracle database, the datatype for an integer column is ...
'''cursor.execute(create_table_query) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 这个SQL语句中,我们使用了CREATE TABLE语句来创建一个名为’example_table’的表格。表格中包含三个字段:'id’是自增的主键,'name’是一个长度为100的字符串字段,'text_field’是一个TEXT类型的字段。
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: ...
Example Explained SQL ANY and ALL ANYALL Examples Explained SQL CASE Examples Explained SQL Comments Single Line CommentsSingle Line Comments At The End Of a LineMulti-line Comments SQL Create DBSQL Drop DBSQL Backup DBSQL Create TableSQL Drop TableSQL Alter TableSQL ConstraintsSQL Not NullSQL ...
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...