I am trying to delete last row in the file generated by nzsql.Please find the below query.
nzsql -A -c "SELECT * FROM AM_MAS_DIVISION_DIM" > abc.out
When I execute this query the output will be generated and stored in abc.out.This will include both header columns as well as some time information at the bottom.But I don't need the bottom metadata and want to keep only my header columns. How can I do this using only nzsql.Please help me.Thanks in advance.
use -r flag in the nzsql command to avoid getting that row [assuming the metadata referred in question is the row count summary line, ex: (3 rows)]
-r Suppresses the row count that is displayed at the end of the SQL output.
reference: http://pic.dhe.ibm.com/infocenter/ntz/v7r0m3/index.jsp?topic=%2Fcom.ibm.nz.adm.doc%2Fr_sysadm_nzsql_command.html
Why don't you just pipe the output to a unix command to remove it? I think something like this will work:
nzsql -A -c "SELECT * FROM AM_MAS_DIVISION_DIM" | sed '$d' > abc.out
Seems to be a recommended solution for getting rid of the last line (although ed, gawk, and other tools can handle it).
Related
I want to insert a line "new line" into a file "Textfile.txt" at line number 3 in AIX.
Before insertion Textfile.txt looks like
one
two
four
After Insertion Textfile.txt looks like
one
two
new line
four
I have already done it on Linux how ever with AIX I am finding it not working with solution of Linux.
Surprisingly I couldn't find a simple solution for this problem anywhere.
I am using this command in Linux and is working
echo "target_node = ${arr[0]}"
echo "target_file = ${arr[1]}"
echo "target_line = ${arr[2]}"
echo "target_text = ${arr[3]}"
escape "$(ssh -f ${arr[0]} "sed -i "${arr[2]}i$(escape ${arr[3]})" ${arr[1]}; exit")"
To sum the previous bits of information written as comments:
Option -i doesn't exist in AIX!sed, use a temporary file; the syntax of command is more strict than in Linux.
sed '2a\
Insert this after the 2nd line' "$target_file" >"$target_file.tmp"
mv -- "$target_file.tmp" "$target_file"
Hi Thanks for the help,
I created script in such a way that it copies the file to linux update changes and movies to AIX.
I need a variable to keep the results retrieved from a query (Sybase) that´s in a script.
I have built the following script, it works fine I get the desired result when I run it
Script: EXECUTE_DAILY:
isql -U database_dba -P password <<EOF!
select the_name from table_name where m_num="NUMB912" and date="17/01/2019"
go
quit
EOF!
echo "All Done"
Output:
"EXECUTE_DAILY" 97 lines, 293 characters
user#zp01$ ./EXECUTE_DAILY
the_name
-----------------------------------
NAME912
(1 row affected)
But now I would like to keep the output(the_name: NAME912) in a variable.
So far this is basically what I'm trying with no success.
variable=$(isql -U database_dba -P password -se "select the_name from table_name where m_num="NUMB912" and date="17/01/2019" ")
But, is not working. I can't save NAME912 in a variable.
You need to parse the output for the desired string/piece-of-data that you wish to store in your variable. I tend to make my life a bit easier by making sure I can easily/quickly search/parse out what I want.
Keeping a few issues in mind ...
I tend to use isql -s"|" -w10000 to ensure (most of the time) that a) the result set has all columns delimited with the pipe ('|') and b) a single row of data does not span multiple rows; the pipe delimiter makes it easier to parse out columns that may contain white space; obviously (?) use a different delimiter if a pipe may be part of your actual data
to make parsing of the isql output a bit easier I tend to add a unique, grep-able (literal) string to the rows that I'm looking to search/parse
some databases (eg, SQLAnywhere, Oracle) tend to mimic a literal value as the column header if said literal string has not been assigned an explicit alias/header; this means that if you do a simple search on your literal string then you'll get a match for the result set header as well as the actual data row
I tend to capture all isql output to a temporary file; this allows for easier follow-on processing, eg, error checking, data parsing, dumping contents to a logfile, etc
So, with the above in mind my code typically looks something like:
$ outfile=/tmp/.$$.isql.outfile
$ isql -s"|" -w10000 -U database_dba -P password <<-EOF > ${outfile} 2>&1
-- 'GREP'||'ME' ensures that 'GREPME' only shows up in the data row
select 'GREP'||'ME',the_name
from table_name
where m_num = "NUMB912"
and date = "17/01/2019"
go
EOF
$ cat ${outfile}
... snip ...
|'GREP'||'ME'|the_name | # notice the default column header = 'GREP'||'ME' which won't match my search for 'GREPME'
|------------|----------|
|GREPME |NAME912 | # this is the line I want to search/parse
... snip ...
$ read -r namevar < <(egrep GREPME ${outfile} | awk -F"|" '{print $3}')
$ echo ${namevar}
NAME912
I'm trying to run a big query query from the command line, but because my query is very long I've written it in a text file. The query works from the GUI and I'm overwriting a table that already exsists
bq query --allow_large_results --replace --destination_table=me.Tbl_MyTable '`cat query.txt`'
However, I'm getting error results:
Error in query string: Error processing job
'dev:bqjob_r_00000123456789456123_1': Encountered "
"\'cat query.txt\' "" at line 1, column 1.
Was expecting: EOF
Do I need to put the entire file path in the .txt filename? (this doesn't seem to make a difference)
Are there any characters I need to be careful with in the text file (e.g. "\" or quotation marks) ?
I'm using where clauses and group by clauses - is that an issue?
Instead of cat, just pipe the input from the file. The command would be:
bq query --allow_large_results --replace --destination_table=me.Tbl_MyTable < query.txt
This will send the contents of query.txt to the bq tool.
Elliot is right, now if you want to cat, sed or anything, pipe it:
cat query.txt | bq query
I'm trying to load a sql from a file in bash and execute the loaded sql. The sql file needs to be versatile, meaning it cannot be altered in order to make things easy while being run in bash (escaping special characters like * )
So I have run into some problems:
If I read my sample.sql
SELECT * FROM SAMPLETABLE
to a variable with
ab=`cat sample.sql`
and execute it
db2 `echo $ab`
I receive an sql error because by doing a cat the * has been replaced by all the files in the directory of sample.sql.
Easy solution would be to replace "" with "\" . But I cannot do this, because the file needs to stay executable in programs like DB Visualizer etc.
Could someone give me hint in the right direction?
The DB2 command line processor has options that accept a filename as input, so you shouldn't need to load statements from a text file into a shell variable.
This command will execute all SQL statements in the file, with newline treated as the statement terminator:
db2 -f sample.sql
This command will execute all SQL statements in the file, with semicolon treated as the statement terminator:
db2 -t -f sample.sql
Other useful CLP flags are:
-x : Suppress the column headings
-v : Echo the statement text immediately before execution
-z : Tee a copy of all CLP output to the filename immediately following this flag
Redirect stdin from the file.
db2 < sample.sql
In case, you have a variable used in your script and wanted to get it replaced by the shell before executed in DB2 then use this approach:
Contents of File.sql:
cat <<xEOF
insert values(1,2) into ${MY_SCHEMA}.${MY_TABLE};
select * from ${MY_SCHEMA}.${MY_TABLE};
xEOF
In command prompt do:
export MY_SCHEMA='STAR'
export MY_TAVLE='DIMENSION'
Then you are all good to get it executed in DB2:
eval File.sq |db2 +p -t
The shell will replace the global variables and then DB2 will execute it.
Hope it helps.
I need to loop a oracle sqlplus query using bash.
my scenario is like this. I have a set of names in a text file and i need to find out details of that names using a sqlplus query.
textfile.txt content:
john
robert
samuel
chris
bash script
#!/bin/bash
while read line
do
/opt/oracle/bin/sqlplus -s user#db/password #query.sql $line
done < /tmp/textfile.txt
sql query: query.sql
set verify off
set heading off
select customerid from customers where customername like '%&1%';
exit
problem is when I run the script I get errors like
SP2-0734: unknown command beginning
"robert..." - rest of line ignored.
can someone tell me how to solve this?
The way I do this all the time is as follows:
#!/bin/bash
cat textfile.txt |while read Name
do
sqlplus -s userid/password#db_name > output.log <<EOF
set verify off
set heading off
select customerid from customers where customername like '%${Name}%'
/
exit
EOF
Bash will auto magically expand ${Name} for each line and place it into the sql command before sending it into sqlplus
Do you have set define on ? Is your wildcard & ? You could check glogin.sql to know.
And yes, establishing n connections to pass n queries is probably not a good solution. Maybe it's faster for you to develop and you will do that one time, but if not, you should maybe think of crafting a procedure.