### Database Schema:
CREATE TABLE words (
	wid	INTEGER	NULL	PRIMARY KEY,
	word	TEXT	NULL,
	occurrences	INTEGER	NULL	DEFAULT 0
);

CREATE TABLE biwords (
	lid	INTEGER	NOT NULL	PRIMARY KEY,
	w1st	INTEGER	NOT NULL	PRIMARY KEY,
	w2nd	INTEGER	NOT NULL	PRIMARY KEY,
	occurrences	INTEGER	NULL	DEFAULT 0,
	foreign key (lid) references langs (lid),
	foreign key (w1st) references words (wid),
	foreign key (w2nd) references words (wid)
);

CREATE TABLE langs_words (
	lid	INTEGER	NOT NULL	PRIMARY KEY,
	wid	INTEGER	NOT NULL	PRIMARY KEY,
	occurrences	INTEGER	NULL,
	foreign key (lid) references langs (lid),
	foreign key (wid) references words (wid)
);

CREATE TABLE langs (
	lid	INTEGER	NULL	PRIMARY KEY,
	lang	TEXT	NULL,
	locale	TEXT	NULL,
	pages	INTEGER	NULL	DEFAULT 0,
	words	INTEGER	NULL	DEFAULT 0
);

CREATE TABLE pages (
	pid	INTEGER	NULL	PRIMARY KEY,
	lid	INTEGER	NULL,
	page	INTEGER	NULL	DEFAULT NULL,
	revision	INTEGER	NULL	DEFAULT NULL,
	title	TEXT	NULL,
	words	INTEGER	NULL	DEFAULT 0,
	foreign key (lid) references langs (lid)
);

CREATE TABLE pages_words (
	pid	INTEGER	NOT NULL	PRIMARY KEY,
	wid	INTEGER	NOT NULL	PRIMARY KEY,
	occurrences	INTEGER	NULL	DEFAULT 0,
	foreign key (wid) references words (wid),
	foreign key (pid) references pages (pid)
);

### User's Query:
Indicate the page id of Wikipedia about Catalan language of all the pages that have a numeric value in their title.

### Extra Knowledge:
the page id of Wikipedia refers to pid; numeric value contains only numbers, LIKE '%0%' OR '%1%' OR '%2%' OR '%3%' OR '%4%' OR '%5%' OR '%6%' OR '%7%' OR '%8%' OR '%9%';
SELECT pid, title FROM pages WHERE title LIKE '%0%' OR '%1%' OR '%2%' OR '%3%' OR '%4%' OR '%5%' OR '%6%' OR '%7%' OR '%8%' OR '%9%'