Table created. Statement2 Create the EMP table which has a foreign key reference to the DEPT table. The foreign key will require that the DEPTNO in the EMP table exist in the DEPTNO column in the DEPT table. createtableemp( empnonumber(4,0), ename varchar2(10), job varchar2(9), mgr...
%msg&sql(CREATEGLOBALTEMPORARYTABLETempEmp(EMPNUMINTNOTNULL,NAMELASTCHAR(30)NOTNULL,NAMEFIRSTCHAR(30)NOTNULL,CONSTRAINTEMPLOYEEPKPRIMARYKEY(EMPNUM)))ifSQLCODE=0{w!,"表创建"}else{w!,"SQLCODE=",SQLCODE,": ",%msg}}
from hr.employees emp left join hr.employees man on emp.manager_id = man.employee_id left join hr.departments dep on emp.department_id = dep.department_id where emp.salary >= 10000 order by 领导 asc; select hr.emp.*, man.first_name 领导, dep.department_name from hr.employees emp lef...
在ObjectScript方法或例程中,可以使用嵌入式SQL来调用DDL命令。 例如,以下方法创建一个Sample.Employee表: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 /// d ##class(PHA.TEST.SQL).CreateTable()ClassMethodCreateTable()As%String{&sql(CREATETABLESample.Employee(EMPNUMINTNOTNULL,NAMELASTCHAR(30)NOTN...
The following statement enables all triggers associated with the emp table: ALTER TABLE employees ENABLE ALL TRIGGERS; DEALLOCATE UNUSED ExampleThe following statement frees all unused space for reuse in table employees, where the high water mark is above MINEXTENTS: ALTER TABLE employees DEALLOCATE ...
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createtable表名 ( 字段名1数据类型(长度), 字段名2数据类型(长度) ) 其中数据类型,我们在后面用到什么类型,在介绍什么类型,有的类型可以不填写长度。 创建数据表示例(部门表,职级表,员工信息表): --创建部门表 createtableDepartment-( --创建部门编号;int代表整数类型;primary key代表主键;identity(1,1)代表...
可以使用ALTER TABLE更改表定义。 下面的嵌入式SQL示例创建一个全局临时表: ClassMethod CreateTable3() { d $SYSTEM.Security.Login("_SYSTEM","SYS") n SQLCODE,%msg &sql( CREATE GLOBAL TEMPORARY TABLE TempEmp ( EMPNUM INT NOT NULL, NAMELAST CHAR(30) NOT NULL, NAMEFIRST CHAR(30) NOT NULL, ...
db_name The name of the database containing the table, view, or table valued function. schema_name The name of the schema owning the table, view, or table valued function. table_name | view_name | table_valued_function_name Specifies that the columns returned are those specified in the ...
[ REFERENCES table (reffield-commalist) ] [ DEFAULT [(]default-spec[)] ] [ ON UPDATE update-spec ] [ COMPUTECODE { ObjectScript-code } [ COMPUTEONCHANGE (field-commalist) | CALCULATED | TRANSIENT ] ] } , } [{ [CONSTRAINT uname] ...