INSERT /*+ APPEND */ INTO table_name(column1, column2, column3) SELECT * FROM another_table WHERE condition; 5. 使用并行插入 对于非常大的数据量,可以使用并行插入来充分利用系统资源。 示例代码: sql INSERT /*+ PARALLEL(table_name, 4) */ INTO table_name(column1, column2, column3) SELEC...
INSERT INTO 语句用于在表中插入新的记录。你可以通过该语句向一个或多个列中插入数据。如果未指定某些列的值,Oracle 将使用这些列的默认值(如果有的话),或者如果这些列不允许 NULL 值且没有默认值,则会导致错误。基本语法向所有列插入数据INSERT INTO table_name VALUES (value1, value2, ..., valueN); ...
Oracle usage You can insert multiple records into a table from another table using theINSERT FROM SELECTstatement, which is a derivative of the basicINSERTstatement. The column ordering and data types must match between the target and the source tables. ...
在Oracle数据库中,INSERT INTO语句用于向表中插入新的数据行。通过该语句,你可以指定要插入数据的列以及相应的值。 语法 基本语法 INSERT INTO table_name (column1, column2, column3, ...) VALUES (value1, value2, value3, ...); table_name:目标表的名称。 column1, column2, column3, ...:要...
是的,Oracle的INSERT INTO语句支持使用子查询来插入数据。可以在INSERT INTO语句中使用SELECT子查询来获取要插入的数据。例如: INSERT INTO table_name (column1, column2, column3) SELECT column1, column2, column3 FROM another_table WHERE condition; 复制代码 在这个例子中,SELECT子查询会从另一个表中选择...
INSERT INTO table_name (column1, column2, column3) SELECT column1, column2, column3 FROM another_table WHERE condition; 复制代码 使用INSERT INTO … VALUES语句结合UNION ALL插入多个值 INSERT INTO table_name (column1, column2, column3) VALUES (value1, value2, value3) UNION ALL VALUES (va...
Re: Insert into table from another table if not exist Gideon Engelbrecht June 01, 2021 12:39AM Sorry, you can't reply to this topic. It has been closed. This forum is currently read only. You can not log in or make any changes. This is a temporary situation. ...
You can use SELECT FROM statement to retrieve data from this table, then use an INSERT INTO to add that set of data into another table, and two statements will be nested in one single query.
The INSERT INTO ... SELECT statement allows inserting data into a table by selecting rows from another table or query result. In this case, countries is the destination table where the data will be inserted. SELECT * FROM country_new retrieves all columns and rows from the 'country_new' ...
Re: Insert into table from another table if not exist Gideon Engelbrecht June 01, 2021 12:39AM Sorry, you can't reply to this topic. It has been closed. Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does...