Question

我需要PHP PDO和SQLITE3的帮助。我有像

这样的表设备

CREATE TABLE device (
 object_identifier integer PRIMARY KEY NOT NULL,
 object_name varchar(1024),
 vendor_name varchar(1024),
 vendor_identifier integer,
 model_name varchar(1024),
 firmware_revision varchar(1024),
 application_software_version varchar(1024),
 protocol_version integer,
 protocol_revision integer,
 max_apdu_length_accepted integer,
 apdu_timeout integer,
 number_of_apdu_retries integer,
 database_revision integer,
 system_status integer,
 protocol_object_types_supported varchar(65),
 segmentation_supported integer,
 protocol_services_supported varchar(65),
 local_time varchar(32),
 local_date varchar(32),
 location varchar(1024),
 object_list_num integer
);

我还有另一张表fan_coil_jebeni

CREATE TABLE fan_coil_jebeni (
 object_identifier integer PRIMARY KEY NOT NULL,
 object_name varchar(1024),
 vendor_name varchar(1024),
);

我的问题是有没有有效的方法从设备中选择所有并插入到fan_coil_jebeni而不需要迭代通过游标（有一堆行要插入）？

Answer 1

您可以使用insert ... select

insert into fan_coil_jebeni(a,b,c) select a,b,c from device

Answer 2

这个怎么样：

INSERT INTO fan_coil_jebeni SELECT object_identifier, object_name, vendor_name FROM device;

Answer 3

CREATE TABLE IF NOT EXISTS `table1` SELECT * FROM `table2`

是否有任何有效的方法从一个表中选择所有表并插入另一个表中

3 个答案: