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Re: Optimal used of sqlite

From meshparts <alexandru.dadalau@meshparts.de>
Newsgroups comp.lang.tcl
Subject Re: Optimal used of sqlite
Date 2026-04-30 11:43 +0200
Message-ID <10sv887$15mm9$1@tota-refugium.de> (permalink)
References (2 earlier) <10ste7r$15qud$1@tota-refugium.de> <10stg30$15s8e$1@tota-refugium.de> <10stt8j$14s5d$1@tota-refugium.de> <10stufp$14srb$1@tota-refugium.de> <1777540923-4652@newsgrouper.org>

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Am 30.04.2026 um 11:22 schrieb rene:
> There is no need to use "" and escape your variables.
> This should work, is faster and save (no code injection).
> The eval method will parse your string correctly. Note the {}.
> 
> db eval {INSERT INTO results VALUES($step-global,$Im)}
> 
> HTH
> rene

Well, it doesn't.
You can use my demo below to test your proposal.
I get the error "no such column: global" when not using the single 
quotes for the key argument.

file delete test.db
set step 1
set Im "1 2 3"
sqlite3 db "test.db"
db eval {CREATE TABLE results(key TEXT, data TEXT)}
db eval {INSERT INTO results VALUES('$step-global',$Im)}
puts [db eval "SELECT data FROM results WHERE key='$step-global'"]
db close

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Thread

Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-29 17:32 +0200
  Re: Optimal used of sqlite Rich <rich@example.invalid> - 2026-04-29 15:50 +0000
    Re: Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-29 19:13 +0200
      Re: Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-29 19:44 +0200
        Re: Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-29 19:58 +0200
          Re: Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-29 20:06 +0200
        Re: Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-29 23:29 +0200
          Re: Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-29 23:50 +0200
            Re: Optimal used of sqlite rene <user4652@newsgrouper.org.invalid> - 2026-04-30 09:22 +0000
              Re: Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-30 11:43 +0200
                Re: Optimal used of sqlite rene <user4652@newsgrouper.org.invalid> - 2026-04-30 13:09 +0000
                Re: Optimal used of sqlite Ralf Fassel <ralfixx@gmx.de> - 2026-04-30 15:35 +0200
                Re: Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-30 15:49 +0200
          Re: Optimal used of sqlite Rich <rich@example.invalid> - 2026-04-29 21:56 +0000
            Re: Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-30 00:12 +0200
              Re: Optimal used of sqlite Rich <rich@example.invalid> - 2026-04-29 22:22 +0000
                Re: Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-30 08:00 +0200
                Re: Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-30 08:34 +0200
                Re: Optimal used of sqlite Ralf Fassel <ralfixx@gmx.de> - 2026-04-30 14:38 +0200
    Re: Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-29 19:15 +0200
      Re: Optimal used of sqlite Rich <rich@example.invalid> - 2026-04-29 21:54 +0000
        Re: Optimal used of sqlite meshparts <alexandru.dadalau@meshparts.de> - 2026-04-30 00:08 +0200
        Re: Optimal used of sqlite Julian Bradfield <jcb@inf.ed.ac.uk> - 2026-04-30 10:25 +0000

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