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Top Forums Shell Programming and Scripting Count number of column in a comma delimited file Post 302591342 by Scrutinizer on Thursday 19th of January 2012 09:05:48 AM
Old 01-19-2012
Sure:
gsub(/"[^"]*"/,x)Delete every occurrence of "" and any characters in between ([^"]* means any number of characters that are not a double quote). x is uninitialized, so it contains nothing.
 The replacement is performed on $0, so then automatically the number of fields (NF) are recalculated.
print NFprint the number of fields..
S.
This User Gave Thanks to Scrutinizer For This Post:
 

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DROP 
TABLE(7) SQL Commands DROP TABLE(7) NAME
DROP TABLE - remove a table SYNOPSIS
DROP TABLE name [, ...] [ CASCADE | RESTRICT ] INPUTS name The name (optionally schema-qualified) of an existing table to drop. CASCADE Automatically drop objects that depend on the table (such as views). RESTRICT Refuse to drop the table if there are any dependent objects. This is the default. OUTPUTS DROP TABLE The message returned if the command completes successfully. ERROR: table "name" does not exist If the specified table does not exist in the database. DESCRIPTION
DROP TABLE removes tables from the database. Only its owner may destroy a table. A table may be emptied of rows, but not destroyed, by using DELETE. DROP TABLE always removes any indexes, rules, triggers, and constraints that exist for the target table. However, to drop a table that is referenced by a foreign-key constraint of another table, CASCADE must be specified. (CASCADE will remove the foreign-key constraint, not the other table itself.) NOTES Refer to CREATE TABLE and ALTER TABLE for information on how to create or modify tables. USAGE
To destroy two tables, films and distributors: DROP TABLE films, distributors; COMPATIBILITY
SQL92 SQL - Language Statements 2002-11-22 DROP TABLE(7)
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