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  • Docmd.TransferText to update data

    - by every_answer_gets_a_point
    i am using Docmd.TransferText to import data from a text file into my access table. i would like it to do the following: if the record already exists, then update it if the record does not exist then add it how do i accomplish this? currently i have this line: DoCmd.TransferText acImportDelim, yesyes, "table3", "C:\requisition_data_dump.txt", True

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  • SQL query for selecting most recent entries

    - by Mr_Skid_Marks
    A table in my database has a column, DATE_ADDED (stored in seconds). I want to extract all rows with the most recent date (aka largest value for DATE_ADDED). The only solution I have come up with is to SELECT all the rows in ASC (ascending) order, grab the last entry from the table, check the date on this, and perform another SELECT on the table but this time only for the discovered DATE_ADDED. Is it possibly to simplify this series of queries into a single one? My thought is I should be able to do a SELECT on all of the largest values in the table, but I am struggling to come up with a proper query.

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  • Delete rows out of table that is innerjoined and unioned with 2 others

    - by jonathan
    We have 3 tables (table1, table2, table3), and I need to delete all the rows from table1 that have the same ID in table2 OR table3. To see a list of all of these rows I have this code: ( select table2.ID, table2.name_first, table2.name_last, table2.Collected from table2 inner join table1 on table1.ID = table2.ID where table2.Collected = 'Y' ) union ( select table3.ID, table3.name_first, table3.name_last, table3.Collected from table3 inner join table1 on table1.ID = table3.ID where table3.Collected = 'Y' ) I get back about 200 rows. How do I delete them from table1? I don't have a way to test if my query will work, so I'm nervous about modifying something I found online and potentially deleting data (we do have backups, but I'd rather not test out their integrity). TIA!

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  • neww help with MSSQL select statement

    - by gio_333m
    Hello, I need help with select statement in MSSQL. My table looks like this: Id (int) QuestionId (int) GenreId (int) I want to select random N rows from this table so that maximum number of same GenreId in the result set is less than X for all GenreId-s except one. For that one GenreId, I need row count with that GenreId to be equal to Y. Thanks in advance

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  • Simple DB2 Query for connection validation

    - by Eric Tuttleman
    I'm looking for a simple DB2 query that can be used to test if a database connection in pool is still valid. It needs to be a generic query that would execute regardless of which databases exist. For other database servers, I've used something like 'SELECT 1' or 'SELECT version();' What would be an equivalent for DB2? Thanks!

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  • MySql: make this query faster… is there a way ? PART TWO

    - by robert
    This is part two of the question: http://stackoverflow.com/questions/2913639/mysql-make-this-query-faster-theres-a-way this query still run slowly: SELECT b.id, b.name, c.name FROM bookcorr as a JOIN books as b on b.id = a.books_id = JOIN Library as c on c.id = a.library_id WHERE a.category_id = '2521' AND a.library_id = '4983' ORDER BY b.name ASC LIMIT 0,15 Any suggest ?

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  • Which of these queries is more efficient?

    - by Brian
    Which of these queries are more efficient? select 1 as newAndClosed from sysibm.sysdummy1 where exists ( select 1 from items where new = 1 ) and not exists ( select 1 from status where open = 1 ) select 1 as newAndClosed from items where new = 1 and not exists ( select 1 from status where open = 1 )

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  • sql clarification

    - by JPro
    Can anyone please clarify what this query will return ? SELECT TestCase FROM MyTable WHERE Verdict = 'PASS' AND StartTime > DATE_SUB(NOW(), INTERVAL 2 MONTH)

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  • delete taking really long time! mysql

    - by every_answer_gets_a_point
    i am doing this: delete calibration_2009 from calibration_2009 join batchinfo_2009 on calibration_2009.rowid = batchinfo_2009.rowid where batchinfo_2009.reporttime like '%2010%'; both tables have about 500k lines of data i suspect that 250k match the criteria to be deleted so far it has been running for 2 hours!!! is there something wrong?

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  • How to deal with 2 almost identical tables

    - by jgritty
    I have a table of baseball stats, something like this: CREATE TABLE batting_stats( ab INTEGER, pa INTEGER, r INTEGER, h INTEGER, hr INTEGER, rbi INTEGER, playerID INTEGER, FOREIGN KEY(playerID) REFERENCES player(playerID) ); But then I have a table of stats that are basically exactly the same, but for a team: CREATE TABLE team_batting_stats( ab INTEGER, pa INTEGER, r INTEGER, h INTEGER, hr INTEGER, rbi INTEGER, teamID INTEGER, FOREIGN KEY(teamID) REFERENCES team(teamID) ); My first instinct is to scrap the Foreign key and generalize the ID, but I still have a problem, I have these 2 tables, and they can't have overlapping IDs: CREATE TABLE player( playerID INTEGER PRIMARY KEY, firstname TEXT, lastname TEXT, number INTEGER, teamID INTEGER, FOREIGN KEY(teamID) REFERENCES team(teamID) ); CREATE TABLE team( teamID INTEGER PRIMARY KEY, name TEXT, city TEXT, ); I feel like I'm overlooking something obvious that could solve this problem and reduce stats to a single table.

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  • CONCAT_WS rows in JOIN

    - by Alex Kiselev
    i have tables profiles (id, name, deleted) categories (id, name, deleted) profiles_categories (id, profile_id, category_id, , deleted) I have wrong query SELECT p.id, p.name CONCAT_WS(', ', c.name) AS keywords_categories FROM profiles p LEFT JOIN profiles_categories pc ON p.id = pc.profile_id LEFT JOIN categories c ON pc.id = c.id WHERE p.deleted = FALSE So, i want have result with all profiles with concan categories.name. Thanks

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  • MySQL: Select remaining rows

    - by Bjork24
    I've searched everywhere for this, but I can't seem to find a solution. Perhaps I'm using the wrong terms. Either way, I'm turning to good ol' trusty S.O. to help my find the answer. I have two tables, we'll call them 'tools' and 'installs' tools = id, name, version installs = id, tool_id, user_id The 'tools' table records available tools, which are then installed by a user and recorded in the 'installs' table. Selecting the installed tools are simple enough: SELECT tools.name FROM tools LEFT JOIN installs ON tools.id = installs.tool_id WHERE user_id = 99 ; How do I select the remaining tools -- the ones that have yet to be installed by user #99? I'm sorry if this is painfully obvious, but I just can't seem to figure it out! Thanks for the help!

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  • Which is faster join

    - by Costa
    Hi Which is faster SELECT * FROM X INNER JOIN Y ON x.Record_ID = y.ForignKey_NotIndexed_NotUnique or SELECT * FROM X INNER JOIN Y ON y.ForignKey_NotIndexed_NotUnique = x.Record_ID

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  • Using closes sql connection brought over by a function

    - by iefpw
    Would this using close this _connection? using(SqlConnection _connection = Class1.GetSqlConnection()) { //code inside the connection } //connection should be closed/ended? I'm just wondering because GetSqlConnection() is a static function of Class1 and the whole connection might not be closed because it is calling outside class' static function instead of straight? using(SqlConnection _connection = new SqlConnection(_connectionString) { //code inside the connection }

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