SQLite - Select Queries using 2 or more tables. Most useful queries in a relational database require the use of two or more tables.
For the purposes of this next exercise we are going to create two tables to use in conjunction with the inventory table. The Requisition table (RecEquip) and the Requisition Detail table (ReqDetail) which is a child table for the ReqEquip table to store the details for requisition request. For every record in ReqEquip there will be one or more records in the ReqDetail table. The ReqNumber column will be the common key for the two tables. sqlite> CREATE TABLE requisition(ReqNumber INTEGER PRIMARY KEY,Requestor VARCHAR(30) NOT NULL,Auth VARCHAR(30) NOT NULL,ReqDate CHAR(10) NOT NULL); sqlite> INSERT INTO requisition(ReqNumber,Requestor,Auth,ReqDate) VALUES (1000,'Carl Jones','A. Renaming Tables Using the ALTER TABLE command, let's rename the table to "ReqEquip" and verify it with the dot command ".tables". sqlite> ALTER TABLE requisition RENAME TO ReqEquip; sqlite> .tables ReqEquip inventory sqlite>
SQLite PHP Tutorial. Installation The SQLite3 extension is enabled by default as of PHP 5.3.0.
It's possible to disable it by using --without-sqlite3 at compile time. Windows users must enable php_sqlite3.dll in order to use this extension. This DLL is included with Windows distributions of PHP as of PHP 5.3.0. For detailed installation instructions, kindly check our PHP tutorial and its official website. PHP Interface APIs Following are important PHP routines which can suffice your requirement to work with SQLite database from your PHP program. Connecting To Database Following PHP code shows how to connect to an existing database. <? Now, let's run above program to create our database test.db in the current directory. Open database successfully Create a Table.
SQLite Interfaces. SQLite Videos. Python - Making it pythonic: create a sqlite3 database if it doesn't exist. Datatypes In SQLite Version 3. Small.
Fast. Reliable.Choose any three. Most SQL database engines (every SQL database engine other than SQLite, as far as we know) uses static, rigid typing. With static typing, the datatype of a value is determined by its container - the particular column in which the value is stored. SQLite uses a more general dynamic type system. 1.0 Storage Classes and Datatypes Each value stored in an SQLite database (or manipulated by the database engine) has one of the following storage classes: NULL. Note that a storage class is slightly more general than a datatype. Any column in an SQLite version 3 database, except an INTEGER PRIMARY KEY column, may be used to store a value of any storage class. All values in SQL statements, whether they are literals embedded in SQL statement text or parameters bound to precompiled SQL statements have an implicit storage class. 1.1 Boolean Datatype SQLite does not have a separate Boolean storage class.
Frequently Asked Questions. SQLZOO. Learn SQL using: SQL Server, Oracle, MySQL, DB2, and PostgreSQL.
Reference: how to... How to read the data from a database. 2 CREATE and DROP How to create tables, indexes, views and other things. How to get rid of them. 3 INSERT and DELETE How to put records into a table, change them and how to take them out again. 4 DATE and TIME How to work with dates; adding, subtracting and formatting. 5 Functions How to use string functions, logical functions and mathematical functions. 6 Users How to create users, GRANT and DENY access, get at other peoples tables. 7 Meta Data How to find out what tables and columns exist. 8 SQL Hacks Some SQL Hacks, taken from "SQL Hacks" published by O'Reilly 9 Using SQL with PHP on Amazon EC2 servers Video tutorials showing how to run MySQL, PHP and Apache on Amazon's EC2 cloud servers. 10 An introduction to transactions Video tutorials showing how sessions can interfere with each other and how to stop it. 11 Using SQL with C# in Visual Studio.
Python - sqlite3.OperationalError: near "X": syntax error.