How do you store the results of Oracle SQL query in a variable in a shell script?

How do you store the results of Oracle SQL query in a variable in a shell script?

Linux: Store SQL Query Result in a Variable in Shell Script

  1. SQL Query Returning Single Row (
  2. Make the file executable.
  3. Test.
  4. Output.
  5. The following example is to demonstrate how to store SQL query result into an array returning multiple rows.
  6. Make it executable.
  7. Test.
  8. Output.

How do you assign the output of a SQL query to a Unix variable?

How do you assign the output of a SQL query to a Unix variable? In first command you assign output of date command in “var” variable! $() or “ means assign the output of command. And in the second command you print value of the “var” variable.

How do you assign grep output to a variable?

How to assign a grep command value to a variable in Linux/Unix

  1. VAR=`command-name` VAR=”`grep word /path/to/file`” ## or ## VAR=$(command-name) VAR=”$(grep word /path/to/file)”
  2. echo “Today is $(date)” ## or ## echo “Today is `date`”
  3. todays=$(date)
  4. echo “$todays”
  5. myuser=”$(grep ‘^vivek’ /etc/passwd)” echo “$myuser”

How do I display a SQL Plus output?

To do this we use a procedure called dbms_output. put_line to place the results in a buffer that SQL*Plus will retrieve and display. SQL*Plus must be told to retrieve data from this buffer in order to display the results. The SQL*Plus command ‘set serveroutput on’ causes SQL*Plus to retrieve and display the buffer.

How do I assign a variable in Oracle?

How to declare variable and use it in the same Oracle SQL script?

  1. Use a DECLARE section and insert the following SELECT statement in BEGIN and END; . Acces the variable using &stupidvar .
  2. Use the keyword DEFINE and access the variable.
  3. Using the keyword VARIABLE and access the the variable.

How do you run a shell script in SQL?

To run a SQL script using SQL*Plus, place the SQL along with any SQL*Plus commands in a file and save it on your operating system. For example, save the following script in a file called “C:\emp. sql”. CONNECT scott/tiger SPOOL C:\emp.

How do you assign the output of an SQL query to a variable?

The syntax for assigning a value to a SQL variable within a SELECT query is @ var_name := value , where var_name is the variable name and value is a value that you’re retrieving. The variable may be used in subsequent queries wherever an expression is allowed, such as in a WHERE clause or in an INSERT statement.

Can grep search a variable?

We can turn the variable into standard output (STDOUT) using the echo command. If we send the output of echo into a pipeline, grep will receive it on the other side as standard input (STDIN). Grep works well with standard input. This allows us to use grep to match a pattern from a variable.

How do you assign a command to a variable in a shell script?

To store the output of a command in a variable, you can use the shell command substitution feature in the forms below: variable_name=$(command) variable_name=$(command [option …] arg1 arg2 …) OR variable_name=’command’ variable_name=’command [option …] arg1 arg2 …’

How do you declare bind variables?

You simply have to write a command which starts with keyword VARIABLE followed by the name of your bind variable which is completely user defined along with the data type and data width. That’s how we declare a bind variable in Oracle database.

How to send parameters from SQL Plus to shell script?

Shell Programming and Scripting Can anybody help me out in sending parameters from sql*plus script to unix shell script without using flat files.. Initially in a shell script i will call sql*plus and after getting some value from some tables, i want that variable value in unix shell script.

How to run a SQL Plus script in Bash?

Runs the specified SQL*Plus script from a web server (URL) or the local file system (filename.ext) with specified parameters that will be assigned to substitution variables in the script.

When to use numbered variables in a shell script?

I used numbered variables, like &1 and &2, but as long as they are defined and exported in the shell script, they will be resolved in SQL*Plus (unless they contain special characters). In cases where a variable contains special characters ($owner), you have to “escape” variables in sqlplus when they contain dollar signs . . .

When to use SQL Plus to execute PL / SQL?

SQL Plus: Release Production Copyright (c) 1982, 2009, Oracle. All rights reserved. Use SQL Plus to execute SQL, PL/SQL and SQL*Plus statements. The output of the above query SELECT ERROR from temp_table will be in the below format Bill payment errors in the last 30 minutes: XX : 70. YY : 20.

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