DELIMITER $$ DROP PROCEDURE IF EXISTS populate $$ CREATE PROCEDURE populate(in_db varchar(20), in_table varchar(20), in_rows int, in_debug char(1)) BEGIN /* | | Developer: Kedar Vaijanapurkar | USAGE: call populate('DATABASE-NAME','TABLE-NAME',NUMBER-OF-ROWS,DEBUG-MODE); | EXAMPLE: call populate('sakila','film',100,'N'); | Debug-mode will print an SQL that's executed and iterated. | */ DECLARE col_name VARCHAR(100); DECLARE col_type VARCHAR(100); DECLARE col_datatype VARCHAR(100); DECLARE col_maxlen VARCHAR(100); DECLARE col_extra VARCHAR(100); DECLARE col_num_precision VARCHAR(100); DECLARE col_num_scale VARCHAR(100); DECLARE func_query VARCHAR(1000); DECLARE i INT; DECLARE done INT DEFAULT 0; DECLARE cur_datatype cursor FOR SELECT column_name,COLUMN_TYPE,data_type,CHARACTER_MAXIMUM_LENGTH,EXTRA,NUMERIC_PRECISION,NUMERIC_SCALE FROM information_schema.columns WHERE table_name=in_table AND table_schema=in_db; DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1; SET func_query=''; OPEN cur_datatype; datatype_loop: loop FETCH cur_datatype INTO col_name, col_type, col_datatype, col_maxlen, col_extra, col_num_precision, col_num_scale; #SELECT CONCAT(col_name,"-", col_type,"-", col_datatype,"-", IFNULL(col_maxlen,'NULL'),"-", IFNULL(col_extra,'NULL')) AS VALS; IF (done = 1) THEN leave datatype_loop; END IF; CASE WHEN col_extra='auto_increment' THEN SET func_query=concat(func_query,'NULL, '); WHEN col_datatype in ('int','bigint') THEN SET func_query=concat(func_query,'get_int(), '); WHEN col_datatype in ('varchar','char') THEN SET func_query=concat(func_query,'get_string(',ifnull(col_maxlen,0),'), '); WHEN col_datatype in ('tinyint', 'smallint','year') or col_datatype='mediumint' THEN SET func_query=concat(func_query,'get_tinyint(), '); WHEN col_datatype in ('datetime','timestamp') THEN SET func_query=concat(func_query,'get_datetime(), '); WHEN col_datatype in ('float', 'decimal') THEN SET func_query=concat(func_query,'get_float(',col_num_precision,',',col_num_scale,'), '); WHEN col_datatype in ('enum','set') THEN SET func_query=concat(func_query,'get_enum("',col_type,'"), '); ELSE SET func_query=concat(func_query,'get_varchar(',ifnull(col_maxlen,0),'), '); END CASE; end loop datatype_loop; close cur_datatype; SET func_query=trim(trailing ', ' FROM func_query); SET @func_query=concat("INSERT INTO ", in_db,".",in_table," VALUES (",func_query,");"); IF in_debug='Y' THEN select @func_query; END IF; SET i=in_rows; populate :loop WHILE (i>0) DO PREPARE t_stmt FROM @func_query; EXECUTE t_stmt; SET i=i-1; END WHILE; LEAVE populate; END LOOP populate; SELECT "Kedar Vaijanapurkar" AS "Developed by"; END $$ DELIMITER ; /************************ END OF STORED PROCEDURE *************************/ /* | Developer: Kedar Vaijanapurkar | MySQL set of function to get random values generated for individual data-types. */ ## MySQL function to generate random string of specified length DROP function if exists get_string; delimiter $$ CREATE FUNCTION get_string(in_strlen int) RETURNS VARCHAR(500) DETERMINISTIC BEGIN set @var:=''; while(in_strlen>0) do set @var:=concat(@var,IFNULL(ELT(1+FLOOR(RAND() * 53), 'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z',' ','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'),'Kedar')); set in_strlen:=in_strlen-1; end while; RETURN @var; END $$ delimiter ; ## MySQL function to generate random Enum-ID from specified enum definition DELIMITER $$ DROP FUNCTION IF EXISTS get_enum $$ CREATE FUNCTION get_enum(col_type varchar(100)) RETURNS VARCHAR(100) DETERMINISTIC RETURN if((@var:=ceil(rand()*10)) > (length(col_type)-length(replace(col_type,',',''))+1),(length(col_type)-length(replace(col_type,',',''))+1),@var); $$ DELIMITER ; ## MySQL function to generate random float value from specified precision and scale. DELIMITER $$ DROP FUNCTION IF EXISTS get_float $$ CREATE FUNCTION get_float(in_precision int, in_scale int) RETURNS VARCHAR(100) DETERMINISTIC RETURN round(rand()*pow(10,(in_precision-in_scale)),in_scale) $$ DELIMITER ; ## MySQL function to generate random date (of year 2012). DELIMITER $$ DROP FUNCTION IF EXISTS get_date $$ CREATE FUNCTION get_date() RETURNS VARCHAR(10) DETERMINISTIC RETURN DATE(FROM_UNIXTIME(RAND() * (1356892200 - 1325356200) + 1325356200)) $$ DELIMITER ; ## MySQL function to generate random time. DELIMITER $$ DROP FUNCTION IF EXISTS get_time $$ CREATE FUNCTION get_time() RETURNS INTEGER DETERMINISTIC RETURN TIME(FROM_UNIXTIME(RAND() * (1356892200 - 1325356200) + 1325356200)) $$ DELIMITER ; ## MySQL function to generate random int. DELIMITER $$ DROP FUNCTION IF EXISTS get_int $$ CREATE FUNCTION get_int() RETURNS INTEGER DETERMINISTIC RETURN floor(rand()*10000000) $$ DELIMITER ; ## MySQL function to generate random tinyint. DELIMITER $$ DROP FUNCTION IF EXISTS get_tinyint $$ CREATE FUNCTION get_tinyint() RETURNS INTEGER DETERMINISTIC RETURN floor(rand()*100) $$ DELIMITER ; ## MySQL function to generate random varchar column of specified length(alpha-numeric string). DELIMITER $$ DROP FUNCTION IF EXISTS get_varchar $$ CREATE FUNCTION get_varchar(in_length int) RETURNS VARCHAR(500) DETERMINISTIC RETURN SUBSTRING(MD5(RAND()) FROM 1 FOR in_length) $$ DELIMITER ; ## MySQL function to generate random datetime value (any datetime of year 2012). DELIMITER $$ DROP FUNCTION IF EXISTS get_datetime $$ CREATE FUNCTION get_datetime() RETURNS VARCHAR(20) DETERMINISTIC RETURN FROM_UNIXTIME(RAND() * (1356892200 - 1325356200) + 1325356200) $$ DELIMITER ;