3、使用values语句构建临时表 TESTUSER@FREEPDB1> select * from (values(1,'multiple'),(2,'values')) T (id,nameinfo); ID NAMEINFO --- --- 1 multiple 2 values 4、values语句构建数据和cte 组合使用 cte (common table expressions)公用表表达式。 TESTUSER@FREEPDB1> with cte_values (id,name...
在INSERT语句中,也可以实现多行的直接插入。 SYS@FREE> conn testuser/oracle@FREEPDB1 Connected. TESTUSER@FREEPDB1> create table t_multirows (id number,infoname varchar2(32)); Table created. TESTUSER@FREEPDB1> insert into t_multirows values(1,'oracle23c'),(2,'oracle23ai'),(3,'mysql8.4...
INSERT INTO BOOK(bookid,name,price) VALUES('100123','oracle sql',54.70); INSERT INTO BOOK VALUES('100123','oracle sql',54.70); INSERT INTO BOOK(bookid) VALUES('100123'); 由于bookid是非空,所以,对于book来说,至少要对bookid进行赋值,虽然这样的数据不完整 如果想往一个表格中插入多条数据,那么...
SQL> insert all 2 into a1(id, a, b, c, d) values (1, 'a', 'a', 'a', 'a') 3 into a1(id, a, b, c, d) values (2, 'b', 'b', 'b', 'b') 4 select 1 from dual; 2 rows created. 1. 2. 3. 4. 5. 按照Oracle的解释,insert all into其实是根据子查询执行了每个in...
// Open a connection conn = DriverManager.getConnection; // Create SQL insert statement with sequence String sql = "INSERT INTO your_table VALUES "; // Create PreparedStatement pstmt = conn.prepareStatement; // Set the value for other_column pstmt.setString;...
按照Oracle的解释,insert all into其实是根据子查询执行了每个insert into子句,注意到上面SQL中每个into子句用的值都是字面量,子查询"select 1 from dual"返回1条记录,支持每个insert into子句插入指定的1条记录, “ALL into_clause: Specify ALL followed by multiple insert_into_clauses to perform an uncondit...
在OceanBase 数据库 V2.x/V3.x/V4.2.1 中,在纯 SELECT SQL 中不支持复杂类型(如 TYPE 类型)的使用, 即如果下面 function 返回值是复杂类型(如 TYPE 类型),则会报错。 SELECT fn_split('a,b,c',',') FROM dual; OceanBase 数据库 V4.2.x 新版本中已支持,如在 OceanBase 数据库 V4.2.4 版本中...
$sql = "INSERT INTO ORDER_ITEMS (order_line_id,order_id,item_id) VALUES (ORDER_LINE_SQ.nextval,".$order_id.",".$item.")"; $stmt = oci_parse($db,$sql); oci_execute($stmt); } While this approach is a perfectly fine way to handle multiple inserts (except for starting a transac...
The BULK COLLECTclause returns results from SQL to PL/SQL in batches rather than one at a time. If a query or DML statement affects four or more database rows, then bulk SQL can significantly improve performance. Assigning values to PL/SQL variables that appear in SQL statements iscalledbind...
SQL> insert all2intoa1(id, a, b, c, d)values(1,'a','a','a','a')3intoa1(id, a, b, c, d)values(2,'b','b','b','b')4selectid, a, b, c, dfroma1;4rows created. 因此,最简单的形式,就是子查询用select 1 from dual。