Sqlite3 PRIMARY KEY
Optionally, a PRIMARY KEY for the table. Both single column and composite (multiple column) primary keys are supported. A set of SQL constraints for each ... , ,On an INSERT, if the ROWID or INTEGER PRIMARY KEY column is not explicitly given a value, then it will be filled automatically with an unused integer, usually ... ,table_name ( column_1 data_type PRIMARY KEY, column_2 data_type NOT NULL, column_3 data_type DEFAULT 0, table_constraints ) [WITHOUT ROWID];. In ... ,A primary key is a column or group of columns used to identify the uniqueness of rows in a table. Each table has one and only one primary key. SQLite allows ... ,PRIMARY Key: 唯一標識數據庫表中的各行/記錄。 CHECK Constraint: CHECK約束，確保一列中的所有值滿足一定條件。 NOT NULL 約束. 默認情況下 ... ,PRIMARY Key 约束：唯一标识数据库表中的各行/记录。 CHECK 约束：CHECK 约束确保某列中的所有值满足一定条件。 NOT NULL 约束. 默认情况 ... ,In SQLite, a primary key is a single field or combination of fields that uniquely defines a record. A table can have only one primary key. TIP: While the SQL-89 and ...
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 Sqlite3 PRIMARY KEY 相關參考資料
CREATE TABLE - SQLite
Optionally, a PRIMARY KEY for the table. Both single column and composite (multiple column) primary keys are supported. A set of SQL constraints for each ... https://sqlite.org SQLite - PRIMARY KEY - Tutorialspoint
https://www.tutorialspoint.com SQLite Autoincrement
On an INSERT, if the ROWID or INTEGER PRIMARY KEY column is not explicitly given a value, then it will be filled automatically with an unused integer, usually ... https://www.sqlite.org SQLite Create Table with Examples - SQLite Tutorial
table_name ( column_1 data_type PRIMARY KEY, column_2 data_type NOT NULL, column_3 data_type DEFAULT 0, table_constraints ) [WITHOUT ROWID];. In ... https://www.sqlitetutorial.net SQLite Primary Key: The Ultimate Guide To Primary Key
A primary key is a column or group of columns used to identify the uniqueness of rows in a table. Each table has one and only one primary key. SQLite allows ... https://www.sqlitetutorial.net SQLite 約束- SQLite教學 - 極客書
PRIMARY Key: 唯一標識數據庫表中的各行/記錄。 CHECK Constraint: CHECK約束，確保一列中的所有值滿足一定條件。 NOT NULL 約束. 默認情況下 ... http://tw.gitbook.net SQLite 约束| 菜鸟教程
PRIMARY Key 约束：唯一标识数据库表中的各行/记录。 CHECK 约束：CHECK 约束确保某列中的所有值满足一定条件。 NOT NULL 约束. 默认情况 ... http://www.runoob.com SQLite: Primary Keys - TechOnTheNet
In SQLite, a primary key is a single field or combination of fields that uniquely defines a record. A table can have only one primary key. TIP: While the SQL-89 and ... https://www.techonthenet.com |