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SQL: currency and account names are unique

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This commit is contained in:
Petr Baudis 2012-10-17 20:54:28 +02:00
parent 8c4f7f5a5c
commit 17ea4c72c6
1 changed files with 3 additions and 1 deletions
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brmbar3/SQL
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@ -1,7 +1,8 @@
CREATE SEQUENCE currencies_id_seq START WITH 1 INCREMENT BY 1; CREATE SEQUENCE currencies_id_seq START WITH 1 INCREMENT BY 1;
CREATE TABLE currencies ( CREATE TABLE currencies (
id INTEGER PRIMARY KEY NOT NULL DEFAULT NEXTVAL('currencies_id_seq'::regclass), id INTEGER PRIMARY KEY NOT NULL DEFAULT NEXTVAL('currencies_id_seq'::regclass),
name VARCHAR(128) NOT NULL name VARCHAR(128) NOT NULL,
UNIQUE(name)
); );
INSERT INTO currencies (name) VALUES ('Kč'); INSERT INTO currencies (name) VALUES ('Kč');
@ -30,6 +31,7 @@ CREATE TABLE accounts (
id INTEGER PRIMARY KEY NOT NULL DEFAULT NEXTVAL('accounts_id_seq'::regclass), id INTEGER PRIMARY KEY NOT NULL DEFAULT NEXTVAL('accounts_id_seq'::regclass),
name VARCHAR(128) NOT NULL, name VARCHAR(128) NOT NULL,
UNIQUE (name),
currency INTEGER NOT NULL, currency INTEGER NOT NULL,
FOREIGN KEY (currency) REFERENCES currencies (id), FOREIGN KEY (currency) REFERENCES currencies (id),