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Insert, on duplicate update in PostgreSQL?

...try the UPDATE again END; END LOOP; END; $$ LANGUAGE plpgsql; SELECT merge_db(1, 'david'); SELECT merge_db(1, 'dennis'); There's possibly an example of how to do this in bulk, using CTEs in 9.1 and above, in the hackers mailing list: WITH foos AS (SELECT (UNNEST(%foo[])).*) updated...
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What is the relative performance difference of if/else versus switch statement in Java?

... just ints. From the Java Tutorials: "A switch works with the byte, short, char, and int primitive data types. It also works with enumerated types (discussed in Enum Types), the String class, and a few special classes that wrap certain primitive types: Character, Byte, Short, and Integer (discussed ...
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Replace all non-alphanumeric characters in a string

I have a string with which i want to replace any character that isn't a standard character or number such as (a-z or 0-9) with an asterisk. For example, "h^&ell`.,|o w]{+orld" is replaced with "h*ell*o*w*orld". Note that multiple characters such as "^&" get replaced with one asterisk. How would I go...
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How does the SQL injection from the “Bobby Tables” XKCD comic work?

..., the parenthesis makes more sense with an INSERT. Thinking backwards, the SELECT would not run anyway as the Insert of the Little Bobby Tables in the table would have already dropped the table. – ypercubeᵀᴹ Jan 21 '13 at 21:41 ...
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how to schedule a job for sql query to run daily?

...QL Server Agent node and right click the Jobs node in SQL Server Agent and select 'New Job' In the 'New Job' window enter the name of the job and a description on the 'General' tab. Select 'Steps' on the left hand side of the window and click 'New' at the bottom. In the 'Steps' window enter a step n...
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What does apply_filters(…) actually do in WordPress?

...the following sequence of functions: wptexturize convert_smilies convert_chars wpautop shortcode_unautop prepend_attachment do_shortcode share | improve this answer | foll...
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how can I Update top 100 records in sql server

...derived table to define the desired sort order as below. ;WITH CTE AS ( SELECT TOP 100 * FROM T1 ORDER BY F2 ) UPDATE CTE SET F1='foo' share | improve this answer | f...
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PostgreSQL: Modify OWNER on all tables simultaneously in PostgreSQL

...and sequences too. Here's what I did: Tables: for tbl in `psql -qAt -c "select tablename from pg_tables where schemaname = 'public';" YOUR_DB` ; do psql -c "alter table \"$tbl\" owner to NEW_OWNER" YOUR_DB ; done Sequences: for tbl in `psql -qAt -c "select sequence_name from information_schem...
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right click context menu for datagridview

...d like to rightclick on a row and have a menu pop up. Then i would like to select things such as copy, validate, etc 7 Answ...
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Eclipse doesn't highlight references anymore

... If none of comments above worked, uncheck "Mark occurrences of the selected element in the current file" > Apply > OK. Go back to preferences, check "Mark occurrences of the selected element in the current file" > Apply > OK. – realPK Feb 4 ...