MySQL & Ruby


#1

Here is my strange issue:

def dump(tableName)
dbh = Mysql.real_connect(SQLServerIP, SQLLogin, SQLPass, SQLDB)
rows = dbh.query(“SELECT * FROM #{tableName} r;”)

rows.each do |row|
theRow = row.join(" | “)
content << theRow+”\n"
end
.
.
.
puts(“None records in #{tableName}!!!”) if dbh.affected_rows == 0
dbh.close
end

dumpTable(“rm_pre_prov_sta”)
dumpTable(“rm_active_sta”)

First calling return unexpectedly nothing (tabe rm_pre_prov_sta has some
records). Second calling returns some records (as expected).
Command ‘select* from rm_pre_prov_sta;’ directly from mysql returns some
records. So what is wrong with this all.

Could anyone explain me why dumpTable(“rm_pre_prov_sta”) returns none of
rows?


#2

Marcin T. wrote:

Here is my strange issue:

First calling return unexpectedly nothing (tabe rm_pre_prov_sta has some
records). Second calling returns some records (as expected).
Command ‘select* from rm_pre_prov_sta;’ directly from mysql returns some
records. So what is wrong with this all.

Could anyone explain me why dumpTable(“rm_pre_prov_sta”) returns none of
rows?

Perhaps you are getting a non-zero SQLCODE (or SQLSTATE). Have you
checked it?

(DB2 is the database I know - I’ve never used MySQL. In DB2, you have
to check the SQLCODE)

Todd