sqlite alter table

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

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

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?

I. ConstraintsAt the end of the previous article, I mentioned constraints,However, I have translated it into a qualifier, which is not very accurate. Here I want to correct it first. It should be more appropriate to translate it into a constraint.So

First, create the data table: The syntax rules and usage of this command are essentially the same as most relational databases, so we illustrate the various rules for creating tables in SQLite. However, for some sqlite-specific rules, we will give

In the Android development environment, ADB is our most frequently used debugging tool for Android development, and its use is of course what our Android developers have to master.ADB overviewAndroid Debug Bridge,android Debug Bridge, abbreviated as

1. Create a data table: The syntax rules and usage of this command are basically the same as those of most relational databases. Therefore, we use examples to demonstrate the rules for creating tables in SQLite. However, we will provide additional

One, database definition language DDL In a relational database, table tables, view views, index indices, relational relationship, and trigger Trigger in a database form the schema of the database. In SQL statements, there are specific statements

Http://www.runoob.com/sqlite/sqlite-syntax.htmlSqliteGrammarSQLite follows a unique set of rules and guidelines called grammar. This tutorial lists all the basic SQLite grammars and gives you a quick start to SQLite.Case sensitivityOne important

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