INSERT INTO orders(id,customer_id,order_date,product_id,quantity)VALUES(1003,100,date'20230822',3,30); INSERT INTO orders(id,customer_id,order_date,product_id,quantity)VALUES(1004,200,date'20230822',4,40); --查看分区p1、p2的数据 SELECT * FROM orders WHERE customer_id IN (100,200); -...
PARTITION p1 VALUES (100), PARTITION p2 VALUES (200), PARTITION p3 VALUES (300), PARTITION p4 VALUES (400), PARTITION p5 VALUES (500) );--插入测试数据 INSERT INTO orders(id,customer_id,order_date,product_id,quantity)VALUES(1001,100,date'20230822',1,10); INSERT INTO orders(id,customer_...
以下示例演示DROP命令的使用,依次执行如下SQL语句: 复制 --删除整个表courseDROPTABLEIFEXISTScourse--创建course表CREATETABLEcourse(cidVARCHAR(10),cnameVARCHAR(10),teidVARCHAR(10));--初始化数据INSERTINTOcourseVALUES('01','语文','02');INSERTINTOcourseVALUES('02','数学','01');INSERTINTOcourseVALUES('...
SQL USE[tempdb];CREATETABLETruncateTest (IDINTIDENTITY(1,1)NOTNULL); GOINSERTINTOTruncateTestDEFAULTVALUES; GO 3 Check the data before truncate. SQL SELECTIDFROMTruncateTest; Truncate the table within a transaction, and check the number of rows. ...
SQL> insert into tbl_a values(1, 'a'); 1 row created. SQL> commit; Commit complete. SQL> truncate table tbl_a; truncate table tbl_a * ERROR at line 1: ORA-02266: unique/primary keys in table referenced by enabled foreign keys ...
mysql> INSERT INTO tb_student_course(name) VALUES ('Java'),('MySQL'),('Python'); Query OK, 3 rows affected (0.05 sec) Records: 3 Duplicates: 0 Warnings: 0 mysql> SELECT * FROM tb_student_course; +---+---+ | id | name | +---+-...
SQL>truncate table tbl_a;Table truncated. 可以执行。 3. 向主表插入一条记录,再次执行truncate 代码语言:javascript 复制 SQL>insert into tbl_avalues(1,'a');1row created.SQL>commit;Commit complete.SQL>truncate table tbl_a;truncate table tbl_a*ERRORat line1:ORA-02266:unique/primary keysintable...
mysql> INSERT INTO tb_student_course(name) VALUES ('Java'),('MySQL'),('Python'); Query OK,3rows affected (0.05sec) Records:3Duplicates:0Warnings:0mysql> SELECT *FROM tb_student_course;+---+---+ | id | name | +---+---+ |1| Java | |2|...
以下示例演示DROP命令的使用,依次执行如下SQL语句: --删除整个表courseDROPTABLEIFEXISTScourse--创建course表CREATETABLEcourse(cidVARCHAR(10),cnameVARCHAR(10),teidVARCHAR(10));--初始化数据INSERTINTOcourseVALUES('01','语文','02');INSERTINTOcourseVALUES('02','数学','01');INSERTINTOcourseVALUES('03'...
The optional partition label list specifies the list of partition buckets to be truncated by specifying the literal values for the partition columns. The values have to be provided as constants or as scalar static variables. For more details on the exact syntax seeALTER TABLE (U-SQL): Adding ...