Re: string concatenation with %s
On Monday, 30 March 2015 at 17:18:01 UTC, Suliman wrote: same problem. I am preparing string to next SQL request: string sss = format(SELECT * FROM test.imgs WHERE src LIKE CONCAT('%', REPLACE(CAST(CURDATE()as char), -, ), '%') OR CONCAT('%', CAST(CURDATE()as char), '%')); Here's your code without SQL noise: string sss = format(foo-, bar); It should be obvious now that you forgot to escape those double quotes.
Re: string concatenation with %s
string sss = format(foo-, bar); It should be obvious now that you forgot to escape those double quotes. Thanks! Is there any way to stay string as is. without need of it's escaping and so on? It's seems I have seen something like it in docs, but I am not sure about it...
Re: string concatenation with %s
On Monday, 30 March 2015 at 17:34:20 UTC, Suliman wrote: string sss = format(foo-, bar); It should be obvious now that you forgot to escape those double quotes. Thanks! Is there any way to stay string as is. without need of it's escaping and so on? It's seems I have seen something like it in docs, but I am not sure about it... There are various other string literal forms [1] where you don't need to escape double quotes: AlternateWysiwygString - backticks as delimiters: `foo -, bar` DelimitedString - can use delimiters of choice, here parentheses: q(foo -, bar) TokenString - for D code, probably not a good choice here, but works: q{foo -, bar} Of course, as they're all delimiter based, there will always something you can't put into the string verbatim. [1] http://dlang.org/lex.html#StringLiteral
Re: string concatenation with %s
same problem. I am preparing string to next SQL request: string sss = format(SELECT * FROM test.imgs WHERE src LIKE CONCAT('%', REPLACE(CAST(CURDATE()as char), -, ), '%') OR CONCAT('%', CAST(CURDATE()as char), '%')); but I am getting next error: source\app.d(178): Error: invalid array operation SELECT * FROM test.imgs WHERE src LIKE CONCAT('%', REPLACE(CAST(CURDATE()as char), - , ), '%') OR CONCAT(' %', CAST(CURDATE()as char), '%') (possible missing []) FAIL .dub\build\application-debug-windows-x86-dmd_2067-112ADE4A65EFD822A10EE5558 208F889\ geodataloader executable
Re: string concatenation with %s
On Wed, 07 Jan 2015 16:38:23 +, Suliman wrote: I except that writefln have some behavior as string concatenation, but it does not. IS there any way to put needed values in place of %s in string? std.string.format interpolates string with the same behavior as writefln but returns the resulting string instead of printing it.
Re: string concatenation with %s
On Wednesday, 7 January 2015 at 16:38:25 UTC, Suliman wrote: I need to construct complex SQL request, like: string sql = (INSERT INTO test.geomagnetic (`date`, `a_fredericksburg`, `fredericksburg`, `a_college`, `college`, `a_planetary`, `planetary`) VALUES ('%s', '%s', '%s', '%s', '%s', '%s', '%s');, date[i], a_fredericksburg[i], fredericksburg[i], a_college[i], college[i], a_planetary[i], planetary[i]); I except that writefln have some behavior as string concatenation, but it does not. IS there any way to put needed values in place of %s in string? Just FYI use prepared statements instead of string concatenation for SQL queries. http://en.wikipedia.org/wiki/Prepared_statement
Re: string concatenation with %s
Suliman: I need to construct complex SQL request, like: string sql = (INSERT INTO test.geomagnetic (`date`, `a_fredericksburg`, `fredericksburg`, `a_college`, `college`, `a_planetary`, `planetary`) VALUES ('%s', '%s', '%s', '%s', '%s', '%s', '%s');, date[i], a_fredericksburg[i], fredericksburg[i], a_college[i], college[i], a_planetary[i], planetary[i]); I except that writefln have some behavior as string concatenation, but it does not. IS there any way to put needed values in place of %s in string? Please show the _clean_ input, followed by an output example. Bye, bearophile
Re: string concatenation with %s
Please show the _clean_ input, followed by an output example. Bye, bearophile to prevent visual corruption I had past it here: http://www.everfall.com/paste/id.php?ftzy9lxr6yfy Just FYI use prepared statements instead of string concatenation for SQL queries. You mean some tools, that help co construct request? How to use them with В, The problem is make proper string. Long string become unreadable :(
Re: string concatenation with %s
std.string.format interpolates string with the same behavior as writefln Thanks!
Re: string concatenation with %s
what if a_college[i] will contain ` char? almost SQL have prepare statement...