I use Perl and Bash everyday. I have written a lot of scripts that I use over and over. Delimited files arent hard to work with with Perl. Look at the split routine for Perl to start with. File handlers. Reach out to me if you need help with it.
I have written an sql query , my intentions are to read and store the data to a tmp table, after that i want to read and insert into two tables that are related through a many to many relation ship . is this the right approach ? .
if it is how can i convert the following sql statements into perl scripting syntax
and how can i grab each id (PK) from both tables after inserting , and store them into an associative array to insert them later to the many to many bridge table , this could be totally off your suggestions are welcomed .
HI
I need to import data from a file which is in comressed format
but system doesn't have enough space to uncompress file
Is there any way so that i can do import from compressed file. (4 Replies)
I am trying to transpose tables listed in the format into format. Any help would be greatly appreciated.
Input:
test_data_1
1 2 90%
4 3 91%
5 4 90%
6 5 90%
9 6 90%
test_data_2
3 5 92%
5 4 92%
7 3 93%
9 2 92%
1 1 92%
...
Output:... (7 Replies)
Hi,
I have a requirement for creating a Perl Script which will perform Data Import process in an automated way and I am elaborating herewith :
Section 1 )
- use the following command line format :
"./import.pl -h hostname -p port -f datafile.txt"
Section 2)
datafile.txt will... (3 Replies)
Hi ,
I want to read the data from 9 tables in oracle DB into 9 different files in the same connection instance (session). I am able to get data from one table to one file with below code :
X=`sqlplus -s user/pwd@DB <<eof
select col1 from table1;
EXIT;
eof`
echo $X>myfile
Can anyone... (2 Replies)
I have been trying to write a simple snip of bash shell code to import from 1 to 100 records into a BASH array.
I have a CSV file that is structured like:
record1,item1,item2,item3,item4,etc.,etc. .... (<= 100 items)
record2,item1,item2,item3,item4,etc.,etc. .... (<= 100 items)... (5 Replies)
Say I have two tables like below..
status
HId sName dName StartTime EndTime
1 E E 9:10 10:10
2 E F 9:15 10:15
3 G H 9:17 10:00
logic
Id devName capacity free Line
1 E 123 34 1
2 E 345 ... (3 Replies)
I have 2 files generated in linux that has common output and were produced across multiple hosts with the same setup/configs. These files do some simple reporting on resource allocation and user sessions. So, essentially, say, 10 hosts, with the same (2) system reporting in the files, so a... (0 Replies)
I want to lookup values from two different tables based on common columns and append. The trick is the column to be looked up is not fixed and varies , so it has to be detected from the header. How can I achieve this at once, for multiple data files, but lookup tables fixed.
The two lookup... (5 Replies)
We have the data looks like below in a log file.
I want to generat files based on the string between two hash(#) symbol like below
Source:
#ext1#test1.tale2 drop
#ext1#test11.tale21 drop
#ext1#test123.tale21 drop
#ext2#test1.tale21 drop
#ext2#test12.tale21 drop
#ext3#test11.tale21 drop... (5 Replies)
What I have:
I have a input.sh (script which basically connect to mysql-db and query's multiple tables to write back the output to output1.out file in a directory)
note: I need to pass an integer (unique_id = anything b/w 1- 1000) next to the script everytime I run the script which generates... (3 Replies)
Discussion started by: kkpand
3 Replies
LEARN ABOUT PHP
sql-acceptable-by-4d
SQL-ACCEPTABLE-BY-4D(3) 1 SQL-ACCEPTABLE-BY-4D(3)SQL acceptable by 4D - PDO and SQL 4D
4D implements strictly the ANSI 89 standard, and have it enforced. It is highly recommended to read the 4D SQL documentation to learn
about the available commands. The URL of the manual is : http://doc.4d.com/. Below is a list of 4D SQL characteristics: it is not exhaus-
tive, but may serve as an introduction.
Characteristics of 4D SQL
+-------------------------------------+--------------------------------------+---+
| Characteristics | | |
| | | |
| | Alternative | |
| | | |
| | Note | |
| | | |
+-------------------------------------+--------------------------------------+---+
| INTEGER | | |
| | | |
| | Modify the SQL to use INT. | |
| | | |
| | INT is the supported integer type in | |
| | 4Dv12.0. | |
| | | |
| CHAR | | |
| | | |
| | Use VARCHAR instead. | |
| | | |
| | Unsupported in 4Dv12.0 | |
| | | |
| UNION | | |
| | | |
| | Unsupported. Make separate queries. | |
| | | |
| | Unsupported in 4Dv12.0 | |
| | | |
| SELECT 1 + 1; | | |
| | | |
| | SELECT 1 + 1 FROM _USER_SCHEMAS; | |
| | | |
| | FROM is required | |
| | | |
| FLOAT | | |
| | | |
| | Cast the FLOAT value into a FLOAT or | |
| | STRING, with an SQL 4D function | |
| | (CAST, ROUND, TRUNC or TRUNCATE) | |
| | | |
| | Unsupported in current versions of | |
| | the PDO_4D driver | |
| | | |
| Strong typing | | |
| | | |
| | Take care your SQL query, or your | |
| | PHP code provides data with the | |
| | expected type | |
| | | |
| | One must provide the right type | |
| | that 4D expect. One can't insert '1' | |
| | (as a string) in an INTEGER column. | |
| | | |
|PDO.execute(row)(3) : only works if | | |
|all the table's column are of type | | |
|TEXT or VARCHAR | | |
| | | |
| | Use the prepared statements, and use | |
| | the right types. | |
| | | |
| | The PDO extension cast all values | |
| | through execute() as string, and | |
| | expect the SQL database to parse the | |
| | values. | |
| | | |
| SELECT NULL FROM TABLE | | |
| | | |
| | Do not use NULL constants. Extract | |
| | them from the table | |
| | | |
| | It is not allowed to use the NULL | |
| | constant in the select list | |
| | | |
| SELECT * FROM TABLE WHERE 1 | | |
| | | |
| | Use WHERE 1 = 1 | |
| | | |
| | A constant can't be used in a WHERE | |
| | clause | |
| | | |
| SHOW TABLES | | |
| | | |
| | Use system tables | |
| | | |
| | The list of tables, schemas, index, | |
| | etc. are in these system tables : | |
| | _USER_TABLES, _USER_COLUMNS, | |
| | _USER_INDEXES, _USER_CONSTRAINTS, | |
| | _USER_IND_COLUMNS, _USER_CONS_COL- | |
| | UMNS, and _USER_SCHEMAS. | |
| | | |
| SQL structure delimiter | | |
| | | |
| | Use the following function to pro- | |
| | tect SQL elements: function | |
| | sqlEscapeElement(elem) { return '[' | |
| | . str_replace(']',']]', $elem) . | |
| | ']'; } | |
| | | |
| | To escape SQL elements names | |
| | (tables, fields, users, groups, | |
| | schema, primary key, etc.), the | |
| | whole identifier must be between | |
| | square brackets, and the closing | |
| | brackets ']' must be doubled. | |
| | | |
+-------------------------------------+--------------------------------------+---+
PHP Documentation Group SQL-ACCEPTABLE-BY-4D(3)