OpenACS / openacs-4 / packages / acs-lang / sql / oracle

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Saturday 12 Feb 2022
9:11 pm

gustafn

improving Oracle upgrade scripts

Oracle has no "ALTER TABLE ADD COLUMN ...."

Oracle has no "ALTER TABLE ADD COLUMN if exists .."

Options
    • -3
    • +17
    ./upgrade-5.10.0d11-5.10.0d12.sql
  2. … 8 more files in changeset.
Wednesday 02 Sep 2020
1:25 pm

antoniop

Do not insert object_ids that do not exist in acs_object (leftover group message keys)

Options
    • -1
    • +2
    ./upgrade-5.10.0d13-5.10.0d14.sql
  2. … 1 more file in changeset.
Tuesday 25 Aug 2020
6:27 pm

antoniop

Take also care to populate the newly created column with the group ids coming from automatically generated message keys

Options
    • -0
    • +8
    ./upgrade-5.10.0d13-5.10.0d14.sql
  2. … 2 more files in changeset.
6:19 pm

antoniop

Create index on the new lang_message_keys.object_id column

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    • +3
    ./upgrade-5.10.0d12-5.10.0d13.sql
  2. … 2 more files in changeset.
3:38 pm

antoniop

acs-lang reform

Provide an optional object_id which can be used to register message keys that will be bound to the lifecycle of an acs-object. When the object is deleted, so will the message key.

This is useful for groups that automatically define a message key for their pretty name. Tcl api was already aware of this and would cleanup such message keys, but other idioms e.g. stored procedures used to delete groups would leave leftovers behind. These can become relatively numerous on group-intensive systems such as LEARN.

Other future usages for this new feature might be the automatic localization of xowiki FormPage properties.

Options
    • -0
    • +5
    ./upgrade-5.10.0d11-5.10.0d12.sql
  2. … 9 more files in changeset.
Thursday 14 Mar 2019
11:41 am

antoniop

Trim padding from column to be sure

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    • +3
    ./upgrade-5.10.0d2-5.10.0d3.sql
11:23 am

antoniop

Redefine ad_locales.language table column as varchar to avoid Oracle idiosyncrasies when comparing a char(n) with other string datatypes when using bind variables (following insightful LARS's remark)

char(n) in Oracle are automatically padded to be n characters long. Apparently, comparing char(n) -> char(n) is "blanks insensitive", while comparing char(n) -> varchar2(n) will account for such automatically inserted blanks. When using bind variables, one should carefully specify the type to use to avoid surprises with char(n) (for this we should touch the oracle driver), normalize the value via trim/pad all the time or replace every char(n) datatype with varchar2. ...are there other places where this is happening?

Options
    • -0
    • +11
    ./upgrade-5.10.0d2-5.10.0d3.sql
  2. … 5 more files in changeset.