Alter the Trades table to allow for 3 decimal places in the purchase price and sell price

Database/PortfolioData.SQL

@@ -2,8 +2,7 @@ CREATE TABLE WatchList
 (
 	watch_list_id INTEGER NOT NULL,
 	symbol VARCHAR(15) NOT NULL,
-	PRIMARY KEY (watch_list_id, symbol),
-	KEY (watch_list_id)
+	PRIMARY KEY (watch_list_id, symbol)
 ) 
 ;
 
@@ -13,17 +12,15 @@ CREATE TABLE Trades
 	trade_id INTEGER NOT NULL AUTO_INCREMENT,
 	symbol VARCHAR(15) NOT NULL,
 	trade_date DATETIME NOT NULL,
-	shares NUMERIC(19,2),
-	price NUMERIC(19,2),
+	shares NUMERIC(19,3),
+	price NUMERIC(19,3),
 	buysell CHAR(1),
 	status VARCHAR(10) NOT NULL,
 	account VARCHAR(25) NOT NULL,
 	commission NUMERIC(19,2) NOT NULL,
 	date_sold DATETIME,
-	sell_price NUMERIC(19,2),
-	PRIMARY KEY (trade_id),
-	KEY (account),
-	INDEX IX_Trades (symbol ASC, trade_date ASC)
+	sell_price NUMERIC(19,3),
+	PRIMARY KEY (trade_id)
 ) 
 ;
 
@@ -37,10 +34,7 @@ CREATE TABLE Cash
 	debit NUMERIC(19,2),
 	balance NUMERIC(19,2),
 	transaction_id INTEGER NOT NULL AUTO_INCREMENT,
-	PRIMARY KEY (account, date, transaction_id),
-	UNIQUE (transaction_id),
-	KEY (account),
-	INDEX IDX_DATE (date ASC)
+	PRIMARY KEY (account, date, transaction_id)
 ) 
 ;
 
@@ -49,8 +43,7 @@ CREATE TABLE WatchLists
 (
 	watch_list_id INTEGER NOT NULL AUTO_INCREMENT,
 	watch_list_name VARCHAR(255) NOT NULL,
-	PRIMARY KEY (watch_list_id),
-	UNIQUE (watch_list_id)
+	PRIMARY KEY (watch_list_id)
 ) 
 ;
 
@@ -59,10 +52,10 @@ CREATE TABLE StopLimits
 (
 	symbol VARCHAR(15) NOT NULL,
 	stop_limit NUMERIC(19,2),
-	shares NUMERIC(19,2),
+	shares NUMERIC(19,2) NOT NULL,
 	stop_type VARCHAR(15),
 	active INTEGER,
-	PRIMARY KEY (symbol)
+	PRIMARY KEY (symbol, shares)
 ) 
 ;
 
@@ -73,19 +66,3 @@ CREATE TABLE Accounts
 	PRIMARY KEY (account)
 ) 
 ;
-
-
-
-
-
-ALTER TABLE WatchList ADD CONSTRAINT FK_WatchList_WatchLists 
-	FOREIGN KEY (watch_list_id) REFERENCES WatchLists (watch_list_id)
-;
-
-ALTER TABLE Trades ADD CONSTRAINT FK_Trades_Accounts 
-	FOREIGN KEY (account) REFERENCES Accounts (account)
-;
-
-ALTER TABLE Cash ADD CONSTRAINT FK_Cash_Accounts 
-	FOREIGN KEY (account) REFERENCES Accounts (account)
-;