【PHP学习】常用sql语句整理

CREATE TABLE `table_name`(
...
)ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO `your_table_name`(`column_name`)
VALUES
('your_value_one'),
('your_value_two');

ALTER TABLE `your_table_name`
ADD `your_column_name` ...
AFTER `column_name`;

ALTER TABLE `your_table_name`
ADD PRIMARY KEY your_index_name(your_column_name);

ALTER TABLE `your_table_name`
ADD UNIQUE your_index_name(your_column_name);

ALTER TABLE `your_table_name`
ADD INDEX your_index_name(your_column_name);

ALTER TABLE `your_table_name`
ADD FULLTEXT your_index_name(your_column_name);

DELETE FORM `table_name`
WHERE ...;

TRUNCATE TABLE `your_table_name`;

DROP TABLE `your_table_name`;

ALTER TABLE `your_table_name`
DROP `column_name`;

ALTER TABLE `your_table_name`
DROP INDEX your_index_name(your_column_name);

UPDATE `table_name`
SET column_name=your_value
WHERE ...;

ALTER TABLE `your_table_name`
CHANGE `your_column_name` `your_column_name` ...(变更);

UPDATE `your_table_name`
AS a
JOIN `your_another_table_name`
AS b
SET a.column = b.another_column
WHERE a.id = b.a_id...;

SELECT `column_name_one`, `column_name_two`
FROM `table_name`;

SELECT *
FROM `your_table_name`
AS a
JOIN `your_anther_table_name`
AS b
WHERE a.column_name = b.column_name...;

SELECT aggregate_function(column_name)
FROM your_table_name
GROUP BY column_name
HAVING aggregate_function(column_name)...;

SELECT *
FROM database_name.your_table_name
AS a
JOIN anther_database_name.your_anther_table_name
AS b
WHERE a.column_name = b.column_name...;

CREATE `your_table_name`
LIKE `destination_table_name`;

CREATE `your_table_name`
LIKE `destination_table_name`;
INSERT INTO `your_table_name`
SELECT *
FROM `destination_table_name`;