Inner Connection-INNER joinThe INNER join (INNER join) creates a new result table based on the connection predicate combined with the column values of two tables (Table1 and table2). The query compares each row in the Table1 to each row in the Table2
SqliteCommon FunctionsReference:SQLite Common Functions | Beginner's TutorialHttp://www.runoob.com/sqlite/sqlite-functions.htmlSqliteCommon FunctionsSQLite has many built-in functions for working with string or numeric data. Some useful SQLite built-
SQLite is an acid-compliant, lightweight database engine that is contained in a relatively small C library. It is a public domain project created by D.richardhipp. Unlike the common client/server architecture paradigm, the SQLite engine is not a
Comprehensive Sqlite Learning (1), sqlite Learning
Finally, CSDN was chosen to sort out the knowledge points published over the past few years. This article was migrated to CSDN in parallel. Because CSDN also supports the MarkDown syntax, it's
I. Constraint Constraints
At the end of the last essay, I mentioned the constraint, but there I translated it as a qualifier, not too accurate, here to correct it, it should be translated into a more appropriate constraint. So what is a constraint?
Comprehensive Sqlite Learning (2) and sqlite Learning
Finally, CSDN was chosen to sort out the knowledge points published over the past few years. This article was migrated to CSDN in parallel. Because CSDN also supports the MarkDown syntax, it's
PS One sentence: Eventually choose Csdn to organize the publication of the knowledge points of these years, the article parallel migration to CSDN. Because CSDN also support markdown grammar, Ah!"Artisan Joshui Http://blog.csdn.net/yanbober"SQLite
1) how to create an auto-increment field?
A simple answer: a field declared as integer primary key will be automatically added.
Here is a detailed answer: Starting from SQLite 2.3.4, if you declare a field in a table as integer primaryKey, so no
Characteristics of the database:
Stored together in a certain way
Can be shared for multiple users
With as few redundant code as possible
Datasets that are independent of each other from the program
Sqlite
SQLite
First, Introduction:
SQLite is currently the most popular open source embedded database, and many other embedded storage engine (NoSQL), such as BerkeleyDB, Membase, and so on, SQLite can well support the basic characteristics of relational
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