1. PostgreSQL copy of all MySQL created and tested.\n 2. Purchase Orders and Sales Orders and stock level management added to MySQL, PostgreSQL, and server and front end code.

static/MySQL/600_p_split.sql

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+
+USE PARTSLTD_PROD;
+
+/*
+
+CALL p_split (
+	'noods, chees',
+	','
+)
+
+*/
+
+
+-- Clear previous proc
+DROP PROCEDURE IF EXISTS p_split;
+
+
+DELIMITER //
+CREATE PROCEDURE p_split (
+	IN a_string VARCHAR(4000),
+	IN a_separator VARCHAR(5)
+    -- IN a_allow_empty BIT
+)
+BEGIN
+	-- Argument redeclaration
+	-- Variable declaration
+    DECLARE v_has_string BIT;
+    DECLARE v_has_separator BIT;
+    DECLARE v_i_separator INT;
+    DECLARE v_i_start INT;
+    DECLARE v_i_end INT;
+    DECLARE v_current_item VARCHAR(4000);
+    
+	-- Argument validation + default values
+	IF a_string IS NULL THEN
+		SET a_string = '';
+	ELSE
+		SET a_string = TRIM(a_string);
+    END IF;
+	IF a_separator IS NULL THEN
+		SET a_separator = '';
+	ELSE
+		SET a_separator = TRIM(a_separator);
+    END IF;
+    /*
+	IF a_allow_empty IS NULL THEN
+		SET a_allow_empty = 0;
+    END IF;
+    */
+    
+    -- Temporary tables
+    DROP TABLE IF EXISTS Split_Temp;
+    
+    CREATE TABLE Split_Temp (
+        display_order INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
+		substring VARCHAR(4000) NOT NULL
+    );
+    
+    
+    -- Parse filters
+    SET v_has_string = CASE WHEN a_string = '' THEN 0 ELSE 1 END;
+    SET v_has_separator = CASE WHEN a_separator = '' THEN 0 ELSE 1 END;
+    
+    IF (v_has_string AND v_has_separator) THEN
+
+		SET v_i_start = 1;
+		SET v_i_end = LOCATE(',', a_string);
+
+		WHILE v_i_end > 0 DO
+			SET v_current_item = SUBSTRING(a_string, v_i_start, v_i_end - v_i_start);
+			INSERT INTO Split_Temp (substring) VALUES (v_current_item);
+
+			SET v_i_start = v_i_end + 1;
+			SET v_i_end = LOCATE(',', a_string, v_i_start);
+		END WHILE;
+
+		SET v_current_item = SUBSTRING(a_string, v_i_start);
+		INSERT INTO Split_Temp (substring) VALUES (TRIM(v_current_item));
+	END IF;
+
+	/*
+    -- Select the results from the temporary table
+    SELECT * FROM Split_Temp;
+    
+    # Return arguments for test
+    SELECT
+	a_string,
+    a_separator
+    -- a_allow_empty
+    ;
+    */
+    
+END //
+DELIMITER ;
+
+/*
+
+CALL p_split (
+	'noods, cheese ', # a_string
+	',' # a_separator
+	# '0', # a_allow_empty
+);
+
+SELECT *
+FROM SPLIT_TEMP;
+
+*/