Firebird Sql Conversion Error From String
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Firebird Date Format
Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: conversion error from string sql Sign up Interbase: conversion error from string “” up vote 1 down vote favorite I'm running IB2009 and I'm trying to count the number of records where a specific field is neither NULL nor empty: SELECT COUNT(A.ID) FROM MYVIEW A WHERE firebird date functions ((A.VARCHARFIELD1 IS NOT NULL) OR (A.VARCHARFIELD1 <> '')) where MYVIEW is a VIEW, and MYVIEW.ID is an INTEGER, while MYVIEW.VARCHARFIELD1 is a VARCHAR(18). I'm getting the error message Error at line 1, conversion error from string "" which I don't really understand, since when I drop the COUNT()-function, the query executes nicely. Do anyone know what I'm doing wrong? Thanks! sql interbase share|improve this question edited Jan 15 '10 at 11:49 asked Jan 15 '10 at 10:22 conciliator 3,29332656 add a comment| 1
Firebird Substring
Answer 1 active oldest votes up vote 1 down vote I don't see anything wrong with using COUNT() in this case. Although it shouldn't matter you might try dropping all the parentheses in your WHERE clause. You also might try using COUNT(*) instead of COUNT(A.ID) just to see if it gives you different results. In any case, based on your description of the intent of the query I don't think that the query is going to do what you intended. If the query is supposed to return rows where the field is neither NULL nor empty I believe your WHERE clause should be WHERE A.VARCHARFIELD1 IS NOT NULL AND A.VARCHARFIELD1 <> '' With the 'OR' in there as originally written I think you'll get back every row in the table where A.VARCHARFIELD1 is NOT NULL, as the "field NOT NULL" predicate will allow in all non-NULL values, and since the two predicates are joined by an OR the second predicate won't matter. I hope this helps. share|improve this answer answered Jan 15 '10 at 12:11 Bob Jarvis 24.5k43766 Bob: well, I actually tried COUNT(*), but to no avail. You're quite correct regarding the 'AND'/'OR' though - there should definitely be an 'AND' there in stead. Thanks! (+1) I believe this to be a bug with the way IB handles VIEWs... It works as a charm when executed against a table with identical fields. –conciliator Jan 15 '10 at 14:47 add a comment| Your A
is not possible, an error is thrown. Result type:User-chosen. Syntax: CAST (expression AS datatype) Shorthand syntax: Alternative syntax, supported only when casting a firebird data types string literal to a DATE, TIME or TIMESTAMP: datatype 'date/timestring'This syntax firebird string functions was already available in InterBase, but was never properly documented. Examples: A full-syntax cast:select cast ('12' || '-June-' || '1959' as date) from rdb$databaseA shorthand string-to-date cast:update People set AgeCat = 'Old' where BirthDate < date '1-Jan-1943'Notice that you can drop even the shorthand http://stackoverflow.com/questions/2070789/interbase-conversion-error-from-string cast from the example above, as the engine will understand from the context (comparison to a DATE field) how to interpret the string: update People set AgeCat = 'Old' where BirthDate < '1-Jan-1943'But this is not always possible. The cast below cannot be dropped, otherwise the engine would find itself with an integer to http://www.firebirdsql.org/refdocs/langrefupd20-cast.html be subtracted from a string: select date 'today' - 7 from rdb$database The following table shows the type conversions possible with CAST. Table11.1.Possible CASTs From To Numeric types Numeric types [VAR]CHAR [VAR]CHAR [VAR]CHAR Numeric types DATE TIME TIMESTAMP DATE TIME [VAR]CHAR TIMESTAMP TIMESTAMP [VAR]CHAR DATE TIME Keep in mind that sometimes information is lost, for instance when you cast a TIMESTAMP to a DATE. Also, the fact that types are CAST-compatible is in itself no guarantee that a conversion will succeed. "CAST(123456789 as SMALLINT)" will definitely result in an error, as will "CAST('Judgement Day' as DATE)". New in Firebird 2.0:You can now cast statement parameters to a datatype, as in: cast (? as integer) This gives you control over the type of input field set up by the engine. Please notice that with statement parameters, you always need a full-syntax cast - shorthand casts are not supported. Firebird Documentation Index → Firebird 2.0 Language Ref. Update → Internal functions → CAST()
we will discuss things relating the ZEOSLib 6.6.x stable versions Moderators: gto, EgonHugeist Post Reply Print view Search Advanced search 3 posts http://zeoslib.sourceforge.net/viewtopic.php?t=2219 • Page 1 of 1 louis Senior Boarder Posts: 56 Joined: 02.01.2009, 19:41 SQL Error: conversion error from string "0" Quote Postby louis » 03.02.2009, 10:18 Hallo, I have this https://www.experts-exchange.com/questions/24184002/Format-Firebird-date-to-yyymmdd.html error message: SQL Error: conversione error from string "0". Error Code: -413. Overflow occurred during datatype conversion. I use delphi 5 with zeos 6.6.4. I need to use a TTimeField conversion error that can have 0.00 time inside but when I try to save the query, I have the error above in unit ZDbcInterbase6Utils. I understand this is because the time is empty but what I do to solve this problem? Thanks. Top mdaems Zeos Project Manager Posts: 2766 Joined: 20.09.2005, 15:28 Location: Brussels, Belgium Contact: Contact mdaems ICQ WLM Yahoo Messenger Quote conversion error from Postby mdaems » 03.02.2009, 10:52 Hi, Can you please file a bug report on the bug tracker? ( http://zeosbugs.firmos.at/ ) Please attach a minimal project showing the error and the script needed to set up the database. Mark Top louis Senior Boarder Posts: 56 Joined: 02.01.2009, 19:41 Quote Postby louis » 03.02.2009, 16:12 mdaems wrote:... Please attach a minimal project showing the error and the script needed to set up the database. Hi Mark, while I prepared the example I have uncovered where I mistook. During create table in database I assigned wrong default, see wrong code: Code: Select allCREATE TABLE CEDOLINI
(
ID_CEDOLINO Integer NOT NULL,
GIORNO1 Time DEFAULT 0 NOT NULL, <--- ERROR
PRIMARY KEY (ID_CEDOLINO)
);but the line correct is:Code: Select all GIORNO1 Time DEFAULT '00.00' NOT NULL, <--- CORRECT!
Thanks Top Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending Post Reply Print view 3 posts • Page 1 of 1 Return to “6.6 - stable” Jump to ZEOS Library - General Announcemen
for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > Format Firebird date to yyymmdd Want to Advertise Here? Solved Format Firebird date to yyymmdd Posted on 2009-02-27 Databases MS SQL Server 2005 1 Verified Solution 3 Comments 3,005 Views Last Modified: 2013-12-09 I am running a query to a Firebird Linked Server in SQL 2005. I am trying to run a where clause that returns all the records that are equal to 'current_date'. my issue is that the date field in the table is stored in the following format: yyymmdd (I also believe its stored as an integer based on the below error.) and 'current_date' returns yyyy-mm-dd which gives me the following error: [Firebird]conversion error from string "2009-02-27" select top 1 * from openquery(Firebird, 'Select tr_time from transactionreport where tr_date = current_date order by tr_time desc') Select all Open in new window 0 Question by:NRGZA Facebook Twitter LinkedIn Google LVL 6 Best Solution byFVER Hi, you can try to use this to format your date. Go to Solution 3 Comments LVL 19 Overall: Level 19 Databases 18 MS SQL Server 2005 1 Message Expert Comment by:NickUpson2009-02-27 all date, time and timestamp (date&time) fields are returned in the format that your client program formats for you, what happens if you use select top 1 * from openquery(Firebird, 'Select tr_time from transactionreport where tr_date = 'today' order by tr_time desc') also what version of firebird are you using 0 LVL 6 Overall: Level 6 MS SQL Server 2005 3 Databases 1 Message Accepted Solution by:FVER2009-02-27 Hi, you can try to use this to format your date. select top 1 * from openquery(Firebird, 'Select tr_time