Finding The Complete SQL statement Using PDFGREP Or Grep
Linux Gods,
I am simply attempting to parse SQL statements from a PDF doc in creating a base SQL script at a later time but for the life of me, am having a tough time extracting this data.This exact string worked perfectly a couple of months ago and now it doesnt. Below is an example of the data structure.
Other variations I have tried:
I suspect something changed in a binary or two. In attempting to get past this, I have attempted various regex variations:
Can someone shed some light? I am using distro Kali 2020.1 which I upgrade from 2019.4 and now the original string doesnt work. Thanks
Hi,
Script that I wrote only run sql query once then exit. But my requirement, I want the query can be execute a couple of time without exiting the script. How could I do it? Thanks. (1 Reply)
Hi,
How to execute sql statements from the .sh file ??
Means, when we run .sh file then the sql statements within it should be get executed one by one from the sqlplus
With Regards (3 Replies)
Hi
Is there any way GREP command can return word and not complete line.
My file has following data:
Hello Everyone I am NitinrajSrivastava
Hi Friends Welcome VrajSrivastava
I am using grep 'raj' which is returning me complete line.However I want only the word having keyword 'raj'.
Required... (11 Replies)
Hi Guys..
need some urgent help... I am stuck in something badly
I need to write a script which would read a sql statement (which might be a join/inner join/select/sub select etc. )
I need to read that sql statement ... and in the output I want all the table names and columns (doesn't... (4 Replies)
I have a situation in which I'm given a bunch of pdf files which are all single pages with employee ID's on an independent line. I need to collate all of the pages by employee ID.
Piecemeal, I can find a particular employee ID by just using pdfgrep.
I could also do something like this: find .... (3 Replies)
Hi,
I have problem with the following code. My IF block is not executed. And I see "syntax error near unexpected token `)'" error for line "EOF" in the stats_function().
but when I comment the IF block I don't see this error.
Kindly help me with this issue.
clean_function()
{... (10 Replies)
The following is my script :
#!/bin/bash
echo "please give app_instance_id"
read app_instance_id
echo "id is $app_instance_id"
export app_id=app_instance_id
sqlplus -s nnviewer/lookup@//nasolora008.enterprisenet.org:1521/LOAD3 @test.sql<<EOF
SPOOL /home/tibco/MCH/Data/qa/raak/name.xls... (4 Replies)
hi, iam completely new to scripting. this may sound naive but i have spend lot of time figuring this out.
i want to make a script to find number of sql processes running. If the number of processes are more then 200, then pick out process IDs along with query it is executing, which are running... (0 Replies)
I am facing a problem while using the grep command in shell script. Actually I have one file (PCF_STARHUB_20130625_1) which contain below records.
SH_5.55916.00.00.100029_20130601_0001_NUC.csv.gz|438|3556691115
SH_5.55916.00.00.100029_20130601_0001_Summary.csv.gz|275|3919504621 ... (2 Replies)
Hi Gurus... good day;
currently I trying to run the df -g command with awk to get to convert in SQL statement, but I have some errors;
df -g | awk '{print "This is the FileSystem: " $NF, " This is LV: "$1, "This is SIZE: "$2, "This is FREE: " $3, "This is the USED% "$4}'
This on AIX... (3 Replies)
Discussion started by: wcastibl
3 Replies
LEARN ABOUT MOJAVE
prepare
PREPARE(7) SQL Commands PREPARE(7)NAME
PREPARE - prepare a statement for execution
SYNOPSIS
PREPARE name [ ( datatype [, ...] ) ] AS statement
DESCRIPTION
PREPARE creates a prepared statement. A prepared statement is a server-side object that can be used to optimize performance. When the PRE-
PARE statement is executed, the specified statement is parsed, rewritten, and planned. When an EXECUTE command is subsequently issued, the
prepared statement need only be executed. Thus, the parsing, rewriting, and planning stages are only performed once, instead of every time
the statement is executed.
Prepared statements can take parameters: values that are substituted into the statement when it is executed. When creating the prepared
statement, refer to parameters by position, using $1, $2, etc. A corresponding list of parameter data types can optionally be specified.
When a parameter's data type is not specified or is declared as unknown, the type is inferred from the context in which the parameter is
used (if possible). When executing the statement, specify the actual values for these parameters in the EXECUTE statement. Refer to EXECUTE
[execute(7)] for more information about that.
Prepared statements only last for the duration of the current database session. When the session ends, the prepared statement is forgotten,
so it must be recreated before being used again. This also means that a single prepared statement cannot be used by multiple simultaneous
database clients; however, each client can create their own prepared statement to use. The prepared statement can be manually cleaned up
using the DEALLOCATE [deallocate(7)] command.
Prepared statements have the largest performance advantage when a single session is being used to execute a large number of similar state-
ments. The performance difference will be particularly significant if the statements are complex to plan or rewrite, for example, if the
query involves a join of many tables or requires the application of several rules. If the statement is relatively simple to plan and re-
write but relatively expensive to execute, the performance advantage of prepared statements will be less noticeable.
PARAMETERS
name An arbitrary name given to this particular prepared statement. It must be unique within a single session and is subsequently used to
execute or deallocate a previously prepared statement.
datatype
The data type of a parameter to the prepared statement. If the data type of a particular parameter is unspecified or is specified as
unknown, it will be inferred from the context in which the parameter is used. To refer to the parameters in the prepared statement
itself, use $1, $2, etc.
statement
Any SELECT, INSERT, UPDATE, DELETE, or VALUES statement.
NOTES
In some situations, the query plan produced for a prepared statement will be inferior to the query plan that would have been chosen if the
statement had been submitted and executed normally. This is because when the statement is planned and the planner attempts to determine the
optimal query plan, the actual values of any parameters specified in the statement are unavailable. PostgreSQL collects statistics on the
distribution of data in the table, and can use constant values in a statement to make guesses about the likely result of executing the
statement. Since this data is unavailable when planning prepared statements with parameters, the chosen plan might be suboptimal. To exam-
ine the query plan PostgreSQL has chosen for a prepared statement, use EXPLAIN [explain(7)].
For more information on query planning and the statistics collected by PostgreSQL for that purpose, see the ANALYZE [analyze(7)] documenta-
tion.
You can see all available prepared statements of a session by querying the pg_prepared_statements system view.
EXAMPLES
Create a prepared statement for an INSERT statement, and then execute it:
PREPARE fooplan (int, text, bool, numeric) AS
INSERT INTO foo VALUES($1, $2, $3, $4);
EXECUTE fooplan(1, 'Hunter Valley', 't', 200.00);
Create a prepared statement for a SELECT statement, and then execute it:
PREPARE usrrptplan (int) AS
SELECT * FROM users u, logs l WHERE u.usrid=$1 AND u.usrid=l.usrid
AND l.date = $2;
EXECUTE usrrptplan(1, current_date);
Note that the data type of the second parameter is not specified, so it is inferred from the context in which $2 is used.
COMPATIBILITY
The SQL standard includes a PREPARE statement, but it is only for use in embedded SQL. This version of the PREPARE statement also uses a
somewhat different syntax.
SEE ALSO
DEALLOCATE [deallocate(7)], EXECUTE [execute(7)]
SQL - Language Statements 2010-05-14 PREPARE(7)