我在数据库上有2个现有表，即Table_1和Table_2。
我需要将Table_1和Table_2的信息合并到一个名为Combined_table的新表中。
Table_1列的名称和值可以直接复制到Combined_table。
然后，我需要添加名称由Service Description中Table_2的不同值组成的列。每个不同的值必须成为添加到Combined_table的列名。
然后，这些新添加的列必须将其各自的值添加到正确的行中。可以通过所有表格中提供的MSISDN列来识别每一行。
Table_1
|MSISDN |Abar Date |Upgrd |Pack Code |Tariff |Avg Spend |SIM Number
|--------------|-----------|------|----------|---------------------|----------|---------------------|
|9602005689344 |18-Mar-15 |Y |MDA |Machine2Machine Data |32.56 |89490000000000001215 |
|9602005926494 |06-Feb-15 |Y |MLT |Machine2Machine Lite |27.38 |89490000000000004457 |
|9602005926509 |06-Feb-15 |Y |MLT |Machine2Machine Lite |10.1 |89490000000000045677 |
|9602005926524 |06-Feb-15 |Y |MLT |Machine2Machine Lite |31.77 |89490000000000002887 |
|9602005926539 |18-Mar-15 |Y |MDA |Machine2Machine Data |32.36 |94900000000000100212 |
|9602006330948 |11-Mar-16 |N |MLT |Machine2Machine Lite |4.39 |89460000000015600111 |
|9602006330950 |11-Mar-16 |N |MLT |Machine2Machine Lite |4.39 |89940000000000426577 |
|--------------|-----------|------|----------|---------------------|----------|---------------------|
Table_2
|MSISDN |Service Description |Value |
|---------------|----------------------------------|----------|
|9602005689344 |100MB |25.44 |
|9602005689344 |Basic Data 9600 |0.00 |
|9602005689344 |Basic Telephony |6.58 |
|9602005689344 |Ebilling - Corporate CD Extract |0.00 |
|9602005689344 |Unrestricted APN |0.00 |
|9602005926494 |100MB |25.44 |
|9602005926494 |Basic Data 9600 |0.00 |
|9602005926494 |Basic Telephony |4.39 |
|9602005926494 |Ebilling - Corporate CD Extract |0.00 |
|9602005926494 |Unrestricted APN |0.00 |
|9602005926509 |Basic Data 9600 |0.00 |
|9602005926509 |Basic Telephony |4.39 |
|9602005926509 |Ebilling - Corporate CD Extract |0.00 |
|9602005926509 |My Meg 0 |0.00 |
|9602005926509 |Unrestricted APN |0.00 |
|9602005926524 |100MB |25.44 |
|9602005926524 |Basic Data 9600 |0.00 |
|9602005926524 |Basic Telephony |4.39 |
|9602005926524 |Ebilling - Corporate CD Extract |0.00 |
|9602005926524 |Unrestricted APN |0.00 |
|9602005926539 |100MB |25.44 |
|9602005926539 |Basic Data 9600 |0.00 |
|9602005926539 |Basic Telephony |6.58 |
|9602005926539 |Ebilling - Corporate CD Extract |0.00 |
|9602005926539 |Unrestricted APN |0.00 |
|9602006330948 |Basic Data 9600 |0.00 |
|9602006330948 |Basic Telephony |4.39 |
|9602006330948 |Caller Identity FREE |0.00 |
|9602006330948 |Ebilling - Corporate CD Extract |0.00 |
|9602006330948 |My Meg 0 |0.00 |
|9602006330948 |Promotional My Gig 1 - 24 Months |0.00 |
|9602006330948 |SMS Mobile Originating |0.00 |
|9602006330948 |Unrestricted APN |0.00 |
|9602006330950 |Basic Data 9600 |0.00 |
|9602006330950 |Basic Telephony |4.39 |
|9602006330950 |Caller Identity FREE |0.00 |
|9602006330950 |Ebilling - Corporate CD Extract |0.00 |
|9602006330950 |My Meg 0 |0.00 |
|9602006330950 |Promotional My Gig 1 - 24 Months |0.00 |
|9602006330950 |SMS Mobile Originating |0.00 |
|9602006330950 |Unrestricted APN |0.00 |
|---------------|----------------------------------|----------|
Combined_table的外观示例。
|MSISDN |Abar Date |Upgrd |Pack |Code Tariff |Avg Spend |SIM Number |100MB |Basic Data 9600 |Basic Telephony |Caller Identity FREE |Ebilling - Corporate CD Extract |My Meg 0 |Promotional My Gig 1 - 24 Months |SMS Mobile Originating |Unrestricted APN |
|9602005689344 |18-Mar-15 |Y |MDA |Machine2Machine Data |32.56 |89490000000000001215 |25.44 |0.00 |6.58 |0.00 |0.00 |0.00 |0.00 |0.00 |0.00 |
|9602005926494 |06-Feb-15 |Y |MLT |Machine2Machine Lite |27.38 |89490000000000004457 |25.44 |0.00 |4.39 |0.00 |0.00 |0.00 |0.00 |0.00 |0.00 |
|9602005926509 |06-Feb-15 |Y |MLT |Machine2Machine Lite |10.10 |89490000000000045677 |0.00 |0.00 |4.39 |0.00 |0.00 |0.00 |0.00 |0.00 |0.00 |
|9602005926524 |06-Feb-15 |Y |MLT |Machine2Machine Lite |31.77 |89490000000000002887 |25.44 |0.00 |4.39 |0.00 |0.00 |0.00 |0.00 |0.00 |0.00 |
|9602005926539 |18-Mar-15 |Y |MDA |Machine2Machine Data |32.36 |89490000000000100212 |25.44 |0.00 |6.58 |0.00 |0.00 |0.00 |0.00 |0.00 |0.00 |
|9602006330948 |11-Mar-16 |N |MLT |Machine2Machine Lite |4.39 |89460000000015600111 |0.00 |0.00 |4.39 |0.00 |0.00 |0.00 |0.00 |0.00 |0.00 |
|9602006330950 |11-Mar-16 |N |MLT |Machine2Machine Lite |4.39 |89940000000000426577 |0.00 |0.00 |4.39 |0.00 |0.00 |0.00 |0.00 |0.00 |0.00 |
我不知道如何使用PHP创建表。 我考虑过执行一个MySQL请求来创建和添加数据，但不知道如何开始。
任何建议都会非常有用。
答案 0 :(得分：1)
如果您已经知道列名（即不同的描述），那么您可以创建一个表并编写SELECT查询，如下所示：
SELECT MSISDN, Abar Date, Upgrd, Pack Code, Tariff, Avg Spend, SIM Number,
(SELECT COALESCE(SUM(VALUE), 0) FROM Table_2 WHERE MSISDN = t1.MSISDN AND description = '100MB') AS 100MB,
(SELECT COALESCE(SUM(VALUE), 0) FROM Table_2 WHERE MSISDN = t1.MSISDN AND description = 'Basic Data 9600') AS 'Basic Data 9600',
(SELECT COALESCE(SUM(VALUE), 0) FROM Table_2 WHERE MSISDN = t1.MSISDN AND description = 'Basic Telephony') AS 'Basic Telephony',
(SELECT COALESCE(SUM(VALUE), 0) FROM Table_2 WHERE MSISDN = t1.MSISDN AND description = 'Ebilling - Corporate CD Extract') AS 'Ebilling - Corporate CD Extract',
(SELECT COALESCE(SUM(VALUE), 0) FROM Table_2 WHERE MSISDN = t1.MSISDN AND description = 'Unrestricted APN') AS 'Unrestricted APN'
FROM Table_1 t1;
您可以使用这些列创建一个表，并使用INSERT INTO .. SELECT语法，例如
INSERT INTO table_3
SELECT MSISDN, Abar Date, Upgrd, Pack Code, Tariff, Avg Spend, SIM Number,
(SELECT COALESCE(SUM(VALUE), 0) FROM Table_2 WHERE MSISDN = t1.MSISDN AND description = '100MB') AS 100MB,
(SELECT COALESCE(SUM(VALUE), 0) FROM Table_2 WHERE MSISDN = t1.MSISDN AND description = 'Basic Data 9600') AS 'Basic Data 9600',
(SELECT COALESCE(SUM(VALUE), 0) FROM Table_2 WHERE MSISDN = t1.MSISDN AND description = 'Basic Telephony') AS 'Basic Telephony',
(SELECT COALESCE(SUM(VALUE), 0) FROM Table_2 WHERE MSISDN = t1.MSISDN AND description = 'Ebilling - Corporate CD Extract') AS 'Ebilling - Corporate CD Extract',
(SELECT COALESCE(SUM(VALUE), 0) FROM Table_2 WHERE MSISDN = t1.MSISDN AND description = 'Unrestricted APN') AS 'Unrestricted APN'
FROM Table_1 t1;
答案 1 :(得分：0)
谢谢Darshan
我设法使用你的sugestions和来自实时数据库表的一些真实数据来编译以下内容。
创建工作正常的临时表：
CREATE table `infolog_SIMS` (`MSISDN` VARCHAR(50), `Abar Date` VARCHAR(50), `Term Date` VARCHAR(50), `Upgrd` VARCHAR(50), `Upgrd date` VARCHAR(50), `Pack Code` VARCHAR(50), `Tariff` VARCHAR(50), `Pack Desc` VARCHAR(50), `Avg Spend` VARCHAR(50), `Stat` VARCHAR(50), `SIM Number` VARCHAR(50));
然后在临时表中添加额外的列，也可以正常工作::
ALTER TABLE `infolog_SIMS` ADD COLUMN `100MB` VARCHAR(50) NOT NULL, ADD COLUMN `Basic Data 9600` VARCHAR(50) NOT NULL, ADD COLUMN `Basic Telephony` VARCHAR(50) NOT NULL, ADD COLUMN `Ebilling Corporate CD Extract` VARCHAR(50) NOT NULL, ADD COLUMN `LTE` VARCHAR(50) NOT NULL, ADD COLUMN `MMS Standard` VARCHAR(50) NOT NULL, ADD COLUMN `Unrestricted APN` VARCHAR(50) NOT NULL, ADD COLUMN `My Meg 0` VARCHAR(50) NOT NULL, ADD COLUMN `SMS Mobile Originating` VARCHAR(50) NOT NULL, ADD COLUMN `Caller Identity FREE` VARCHAR(50) NOT NULL, ADD COLUMN `Promotional My Gig 1 24 Months` VARCHAR(50) NOT NULL, ADD COLUMN `MyMeg 30 Mobile Internet Bundle` VARCHAR(50) NOT NULL, ADD COLUMN `15MB` VARCHAR(50) NOT NULL, ADD COLUMN `SPNwww.infolog.co.za` VARCHAR(50) NOT NULL, ADD COLUMN `Make Nat. Int. Roam Calls` VARCHAR(50) NOT NULL, ADD COLUMN `Outgoing Bar` VARCHAR(50) NOT NULL;
现在为每行添加值：
SELECT *, (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = '100MB') AS '100MB', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'Basic Data 9600') AS 'Basic Data 9600', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'Basic Telephony') AS 'Basic Telephony', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'Ebilling Corporate CD Extract') AS 'Ebilling Corporate CD Extract', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'LTE') AS 'LTE', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'MMS Standard') AS 'MMS Standard', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'Unrestricted APN') AS 'Unrestricted APN', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'My Meg 0') AS 'My Meg 0', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'SMS Mobile Originating') AS 'SMS Mobile Originating', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'Caller Identity FREE') AS 'Caller Identity FREE', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'Promotional My Gig 1 24 Months') AS 'Promotional My Gig 1 24 Months', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'MyMeg 30 Mobile Internet Bundle') AS 'MyMeg 30 Mobile Internet Bundle', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = '15MB') AS '15MB', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'SPNwww.infolog.co.za') AS 'SPNwww.infolog.co.za', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'Make Nat. Int. Roam Calls') AS 'Make Nat. Int. Roam Calls', (SELECT `Value` FROM `Infolog_temp_VAS` WHERE `Dialling No` = `t1`.`MSISDN` AND `Service Description` = 'Outgoing Bar') AS 'Outgoing Bar' FROM `Infolog_temp_SDR` `t1`;
如果Value表中不存在该服务，则某些NULL字段将返回Infolog_temp_VAS。是否可以在IF不存在的情况下添加service条件，以便将NULL更改为NO？
请注意，这不是实际的插入命令，只是选择部分。