How to execute postgres' sql queries from batch file? - sql

I need to execute SQL from batch file.
I am executing following to connect to Postgres and select data from table
C:/pgsql/bin/psql -h %DB_HOST% -p 5432 -U %DB_USER% -d %DB_NAME%
select * from test;
I am able to connect to database, however I'm getting the error
'select' is not recognized as an internal or external command,
operable program or batch file.
Has anyone faced such issue?
This is one of the query i am trying, something similar works in shell script, (please ignore syntax error in the query if there are any)
copy testdata (col1,col2,col3) from '%filepath%/%csv_file%' with csv;

You could pipe it into psql
(
echo select * from test;
) | C:/pgsql/bin/psql -h %DB_HOST% -p 5432 -U %DB_USER% -d %DB_NAME%
When closing parenthesis are part of the SQL query they have to be escaped with three carets.
(
echo insert into testconfig(testid,scenarioid,testname ^^^) values( 1,1,'asdf'^^^);
) | psql -h %DB_HOST% -p 5432 -U %DB_USER% -d %DB_NAME%

Use the -f parameter to pass the batch file name
C:/pgsql/bin/psql -h %DB_HOST% -p 5432 -U %DB_USER% -d %DB_NAME% -f 'sql_batch_file.sql'
http://www.postgresql.org/docs/current/static/app-psql.html
-f filename
--file=filename
Use the file filename as the source of commands instead of reading commands interactively. After the file is processed, psql terminates. This is in many ways equivalent to the meta-command \i.
If filename is - (hyphen), then standard input is read until an EOF indication or \q meta-command. Note however that Readline is not used in this case (much as if -n had been specified).

if running on Linux, this is what worked for me (need to update values below with your user, db name etc)
psql "host=YOUR_HOST port=YOUR_PORT dbname=YOUR_DB_NAME user=YOUR_USER_NAME password=YOUR_PASSWORD" -f "fully_qualified_path_to_your_script.sql"

You cannot put the query on separate line, batch interpreter will assume it's another command instead of a query for psql. I believe you will need to quote it as well.

I agree with Spidey:
1] if you are passing the file with the sql use -f or --file parameter
When you want to execute several commands the best way to do that is to add parameter -f, and after that just type path to your file without any " or ' marks (relative paths works also):
psql -h %host% -p 5432 -U %user% -d %dbname% -f ..\..\folder\Data.txt
It also works in .NET Core. I need it to add basic data to my database after migrations.

Kindly refer to the documentation
1] if you are passing the file with the sql use -f or --file parameter
2] if you are passing individual command use -c or --command parameter

If you are trying the shell script
psql postgresql://$username:$password#$host/$database < /app/sql_script/script.sql

Related

How to execute multiple SQL files from a local directory in PostgreSQL/PgAdmin4 in on transaction in Windows?

I have a folder in a directory in my PC which contains multiple SQL files. Each of the file is a Postgres function. I want to execute every SQL file situated in the folder at a time in PostgreSQL server using PgAdmin or in other way. How can I accomplish this?
I apologize if I'm oversimplifying your question, but if the main issue is how to execute all SQL files without having to call them one by one, you just need to put them in a loop, e.g. in bash calling psql
#!/bin/bash
for f in *.sql
do
psql -h dbhost -d db -U dbuser -f $f
done
Or cat them and pipe the result to psql stdin:
$ cat /path/to/files/*.sql | psql -h dbhost -d db -U dbuser
And if you need them to run in a single transaction, consider merging the SQL files, e.g. using cat - this assumes all statements in your sql file are properly terminated:
$ cat /path/to/files/*.sql > merged.sql

Import dump/sql file into my postgresql database on Linode

I recently moved my Ruby on Rails 4 app from Heroku to Linode. Everything has been setup correctly, but I need to populate my database with a file, lets call it movies.sql
I am not very familiar with postgresql command and VPS, so having trouble getting this done. I uploaded it to Dropbox since I saw many SO posts that you can use S3/Dropbox.
I saw different commands like this (unsure how to go about it in my situation):
psql -U postgres -d testdb -f /home/you/file.sql
psql -f file.sql dbname
psql -U username -d myDataBase -a -f myInsertFile
So which is the correct one in my situation and how to run when I SSH in Linode? Thanks
You'll need to get the file onto your server or you'll need to use a different command from your terminal.
If you have the file locally, you can restore without sshing in using the psql command:
psql -h <user#ip_address_of_server> -U <database_username> -d <name_of_the_database> -f local/path/to/your/file.sql
Otherwise, the command is:
psql -U <database_username> -d <name_of_the_database> < remote/path/to/your/file.sql
-U sets the db username, -h sets the host, -d sets the name of the database, and -f tells the command you're restoring from a file.

Cannot execute script: Insufficient memory to continue the execution of the program

I have a 123MB sql file which I need to execute in my local PC. But I am getting
Cannot execute script: Insufficient memory to continue the execution of the program
How to solve this issue?
use the command-line tool SQLCMD which is much leaner on memory. It is as simple as:
SQLCMD -d <database-name> -i filename.sql
You need valid credentials to access your SQL Server instance or even to access a database
Taken from here.
It might help you! Please see below steps.
sqlcmd -S server-name -d database-name -i script.sql
Open cmd.exe as Administrator.
Create Documents directory.
Put your SQL Script file(script.sql) in the documents folder.
Type query with sqlcmd, server-name, database-name and script-file-name as like above highlighted query or below command line screen.
For Windows Authentication use this sql cmd
SQLCMD -S TestSQLServer\SQLEXPRESS -d AdventureWorks2018 -i "d:\document\sql document\script.sql"
Note: If there is any space in the sql file path then use " (Quotation marks) "
For SQL Server Authentication use this sql cmd
SQLCMD -S TestSQLServer\SQLEXPRESS -U sa -P sasa -d AdventureWorks2018 -i "d:\document\sql document\script.sql"
-S TestSQLServer\SQLEXPRESS: Here specify SQL Server Name
-U sa: Username (in case of SQL Server Authentication)
-P sasa: Password (in case of SQL Server Authentication)
-d AdventureWorks2018: Database Name come here
-i "d:\document\sql document\script.sql": File Path of SQLFile
You can also simply increase the Minimum memory per query value in server properties. To edit this setting, right click on server name and select Properties > Memory tab.
I encountered this error trying to execute a 30MB SQL script in SSMS 2012. After increasing the value from 1024MB to 2048MB I was able to run the script.
(This is the same answer I provided here)
My database was larger than 500mb, I then used the following
C:\Windows>sqlcmd -S SERVERNAME -U USERNAME -P PASSWORD -d DATABASE -i C:\FILE.sql
It loaded everything including SP's
*NB: Run the cmd as Administrator
If I understand your problem correctly, you are trying to restore (transact sql) xyz.sql - database + schema. You can try this command which worked for me:
SQLCMD -U sa -i xyz.sql
Try this step,
1)Open PowerShell
2)Write this command:
sqlcmd -S PCNAME\SQLEXPRESS -U user -P password -d databanse_name -i C:\script.sql
3)Press Return
:-)
Below script works perfectly:
sqlcmd -s Server_name -d Database_name -E -i c:\Temp\Recovery_script.sql -x
Symptoms:
When executing a recovery script with sqlcmd utility, the ‘Sqlcmd: Error: Syntax error at line XYZ near command ‘X’ in file ‘file_name.sql’.’ error is encountered.
Cause:
This is a sqlcmd utility limitation. If the SQL script contains dollar sign ($) in any form, the utility is unable to properly execute the script, since it is substituting all variables automatically by default.
Resolution:
In order to execute script that has a dollar ($) sign in any form, it is necessary to add “-x” parameter to the command line.
e.g.
Original:
sqlcmd -s Server_name -d Database_name -E -i c:\Temp\Recovery_script.sql
Fixed:
sqlcmd -s Server_name -d Database_name -E -i c:\Temp\Recovery_script.sql -x
Sometimes, due to the heavy size of the script and data, we encounter this type of error. Server needs sufficient memory to execute and give the result. We can simply increase the memory size, per query.
You just need to go to the sql server properties > Memory tab (left side)> Now set the maximum memory limit you want to add.
Also, there is an option at the top, "Results to text", which consume less memory as compare to option "Results to grid", we can also go for Result to Text for less memory execution.
sqlcmd -S mamxxxxxmu\sqlserverr -U sa -P x1123 -d QLDB -i D:\qldbscript.sql
Open command prompt in run as administrator
enter above command
"mamxxxxxmu" is computer name
"sqlserverr" is server name
"sa" is username of server
"x1123" is password of server
"QLDB" is database name
"D:\qldbscript.sql" is sql script file to execute in database
If you need to connect to LocalDB during development, you can use:
sqlcmd -S "(localdb)\MSSQLLocalDB" -d dbname -i file.sql
As in most answers given here use the command-line tool. In my case the script already has database creation code. If your script contains CREATE DATABASE command, for example
USE [master]
GO
CREATE DATABASE [your-database-name]
Then do not use the -d your-database-name, instead use the following command.
For Windows Authentication use the command
sqlcmd -S ServerName\InstanceName -i "script.sql" -x
For SQL Server Authentication use the command
sqlcmd -S ServerName\InstanceName -U usename -P password -i "script.sql" -x

How do you run a single query through mysql from the command line?

I'm looking to be able to run a single query on a remote server in a scripted task.
For example, intuitively, I would imagine it would go something like:
mysql -uroot -p -hslavedb.mydomain.com mydb_production "select * from users;"
mysql -u <user> -p -e 'select * from schema.table'
(Note the use of single quotes rather than double quotes, to avoid the shell expanding the * into filenames)
mysql -uroot -p -hslavedb.mydomain.com mydb_production -e "select * from users;"
From the usage printout:
-e, --execute=name
Execute command and quit. (Disables --force and history file)
here's how you can do it with a cool shell trick:
mysql -uroot -p -hslavedb.mydomain.com mydb_production <<< 'select * from users'
'<<<' instructs the shell to take whatever follows it as stdin, similar to piping from echo.
use the -t flag to enable table-format output
If it's a query you run often, you can store it in a file. Then any time you want to run it:
mysql < thefile
(with all the login and database flags of course)
echo "select * from users;" | mysql -uroot -p -hslavedb.mydomain.com mydb_production
As by the time of the question containerization wasn't that popular, this is how you pass a single query to a dockerized database cluster with Ansible, following #RC.'s answer:
ansible <host | group > -m shell -a "docker exec -it <container_name | container_id> mysql -u<your_user> -p<your_pass> <your_database> -e 'SELECT COUNT(*) FROM my_table;'"
If not using Ansible, just login to the server and use docker exec -it ... part.
MySQL will issue a warning that passing credentials in plain text may be insecure, so be aware of your risks.
From the mysql man page:
You can execute SQL statements in a script file (batch file) like this:
shell> mysql db_name < script.sql > output.tab
Put the query in script.sql and run it.

How do you execute SQL from within a bash script?

I have some SQL scripts that I'm trying to automate. In the past I have used SQL*Plus, and called the sqlplus binary manually, from a bash script.
However, I'm trying to figure out if there's a way to connect to the DB, and call the script from inside of the bash script... so that I can insert date and make the queries run relative to a certain number of days in the past.
I'm slightly confused. You should be able to call sqlplus from within the bash script. This may be what you were doing with your first statement
Try Executing the following within your bash script:
#!/bin/bash
echo Start Executing SQL commands
sqlplus <user>/<password> #file-with-sql-1.sql
sqlplus <user>/<password> #file-with-sql-2.sql
If you want to be able to pass data into your scripts you can do it via SQLPlus by passing arguments into the script:
Contents of file-with-sql-1.sql
select * from users where username='&1';
Then change the bash script to call sqlplus passing in the value
#!/bin/bash
MY_USER=bob
sqlplus <user>/<password> #file-with-sql-1.sql $MY_USER
You can also use a "here document" to do the same thing:
VARIABLE=SOMEVALUE
sqlplus connectioninfo << HERE
start file1.sql
start file2.sql $VARIABLE
quit
HERE
Here is a simple way of running MySQL queries in the bash shell
mysql -u [database_username] -p [database_password] -D [database_name] -e "SELECT * FROM [table_name]"
Maybe you can pipe SQL query to sqlplus. It works for mysql:
echo "SELECT * FROM table" | mysql --user=username database
I've used the jdbcsql project on Sourceforge.
On *nix systems, this will create a csv stream of results to standard out:
java -Djava.security.egd=file///dev/urandom -jar jdbcsql.jar -d oracledb_SID -h $host -p 1521 -U some_username -m oracle -P "$PW" -f excel -s "," "$1"
Note that adding the -Djava.security.egd=file///dev/urandom increases performance greatly
Windows commands are similar: see http://jdbcsql.sourceforge.net/
If you do not want to install sqlplus on your server/machine then the following command-line tool can be your friend. It is a simple Java application, only Java 8 that you need in order to you can execute this tool.
The tool can be used to run any SQL from the Linux bash or Windows command line.
Example:
java -jar sql-runner-0.2.0-with-dependencies.jar \
-j jdbc:oracle:thin:#//oracle-db:1521/ORCLPDB1.localdomain \
-U "SYS as SYSDBA" \
-P Oradoc_db1 \
"select 1 from dual"
Documentation is here.
You can download the binary file from here.
As Bash doesn't have built in sql database connectivity... you will need to use some sort of third party tool.