11-28-2011
Assign SQL result in shell variable
Hi
im trying to assign the result of the db2 command to a variable inside a shell script...
: tab_cnt=`db2 "select count(*) from syscat.tables where tabname = 'ABC' and tabschema = 'MATT01'" |head -4|tail +4|cut -c 11`
: echo $tab_cnt
when i echo im getting a blank value.. im expecting value 0...
if i try the same command outside the script
: db2 "select count(*) from syscat.tables where tabname = 'ABC' and tabschema = 'MATT01'" |head -4|tail +4|cut -c 11
: 0 (i get 0... expectd)
I found that if i remove the " |head -4|tail +4|cut -c 11" from the db2 command im getting an output of
tab_cnt=
1
-----------
0
1 record(s) selected.
can smbdy explain why is this happening ..n what can be done for getting the query results in a variable...
thanks in advance...
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LEARN ABOUT PHP
db2_stmt_error
DB2_STMT_ERROR(3) 1 DB2_STMT_ERROR(3)
db2_stmt_error - Returns a string containing the SQLSTATE returned by an SQL statement
SYNOPSIS
string db2_stmt_error ([resource $stmt])
DESCRIPTION
Returns a string containing the SQLSTATE value returned by an SQL statement.
If you do not pass a statement resource as an argument to db2_stmt_error(3), the driver returns the SQLSTATE value associated with the
last attempt to return a statement resource, for example, from db2_prepare(3) or db2_exec(3).
To learn what the SQLSTATE value means, you can issue the following command at a DB2 Command Line Processor prompt: db2 '? $sqlstate-
value'. You can also call db2_stmt_errormsg(3) to retrieve an explicit error message and the associated SQLCODE value.
PARAMETERS
o $stmt
- A valid statement resource.
RETURN VALUES
Returns a string containing an SQLSTATE value.
SEE ALSO
db2_conn_error(3), db2_conn_errormsg(3), db2_stmt_errormsg(3).
PHP Documentation Group DB2_STMT_ERROR(3)