I. Connecting queries within a connectionSelect a. field, B. field from table 1 A, table 2 B where a. field =b. Fields and ...Two. DML Data Manipulation language1. Add insert INTO values1-insert into table name values (a list of values corresponding
Lab Report
Course Name
Mobile Internet development based on Android platform
Date of experiment
2016/5/6
Name of the experimental project
SQLite database Operations
Location of the experiment
1, the SQL statement precompilation: The statement to the data stream, the execution of the statement before the syntax of the check statement, but do not know whether the statement can detect the results. This method has a return valuePrecompiled
Http://stackoverflow.com/questions/531035/how-to-do-if-not-exists-in-sqliteHow is this?INSERT OR IGNORE INTO EVENTTYPE (EventTypeName) VALUES ‘ANI Received‘(Untested as I don ' t have SQLite ... however this link is quite descriptive.)Additionally,
Databases
A database is a data store for storing, querying, and processing data. The database stores the data we need and opens an interface that interacts with the data. Most technology companies use databases to organize numbers. Database
1. Open the DatabaseintSqlite3_open (Const Char*filename,//the file path of the databaseSqlite3 **ppdb//DB Instance);2. Execute any SQL statementintsqlite3_exec (Sqlite3*,//an open DB instance Const Char*sql,//SQL statements that need to be
Rsqlite can easily create a SQLite database and retrieve it in R, which depends on the DBI packageAddress on GitHub: Https://github.com/rstats-db/RSQLiteThe introduction to GitHub details how to use Rsqlite to create a database and retrieve
1. Create a SQL tableCREATE table student (ID integer primary key, name text, score integer);2. Insert a recordINSERT into student (score, ID, name) VALUES (1, ' xiaoming ');INSERT into student values (2, "Xiaozhang", 90);If the primary key is not
SQL statement FormatSQL instruction format: All SQL instructions are represented by a semicolon (;) end, and two minus signs (--) are the comments.Such as:Sqlite>create studen_table (\Stu_no interger PRIMARY KEY, \Name Text Not null,\Id Interger
Slqlite is a lightweight database that is currently a relatively popular small database for every system. NET nature is also supported by1. Add 2 references System.data.sqlite.linq,system.data.sqlite2. Bulk Insert the following "must be placed in a
Install (2 files, unzip together)Official website: http://www.sqlite.orgThis is not the form of the installation package, after the download is the following 2 files:Unzip to the same directory,After the installation is complete, remember to add the
SqliteMainstream embedded relational database: Lightweight, cross-platform based C language, in iOS need to use the C language database operations using Dynamic Data types, even when the creation of a type defined, in the actual operation can also
Http://www.runoob.com/sqlite/sqlite-drop-table.htmlSQLite Delete TableThe Drop table statement from SQLite is used to delete the table definition and all its related data, indexes, triggers, constraints, and permission specifications for the table.
Http://www.runoob.com/sqlite/sqlite-insert.htmlSqliteInsert StatementThe INSERT into statement for SQLite is used to add new rows of data to a table in the database.GrammarThe INSERT into statement has two basic syntaxes, as follows:INSERT into
The main table types in SQLite are ordinary tables, without ROWID tables, and temporary tables. Temporary tables are typically queries that require temporary storage of results for use. This article focuses on the differences between ordinary tables
First, attach database:The ATTACH database statement adds another file to the current connection, and if the file name is ": Memory:", we can treat it as a memory database and the memory database cannot be persisted to the disk file. If you
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