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How to really return a something out of a table?


HeavyMetal

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Posted

im with some problems here, i have a database witch have the player name, and a number related to it, everytime i use:

 result = executeSQLQuery("SELECT Name FROM owners WHERE Dim=?", 1) 

it work nice in the code but when i need to read this using a chat box:

outputChatBox("Welcome "..tostring(result).."",player)] 

it says: Welcome table: 045D8820

how can i return the real value, and not a "table"?

Posted (edited)

i already saw this page,but im having the problem when i use what says on it, anyway, what means when a variable haves # before it? i know that is something related to tables, but what exactly this does?

Edited by Guest
Posted

i dont want to be annoying but, how to get the value? and not table: 045D8820 from a table? anyway to convert this table code into the value? any function for that? thanks

Posted

i know i tryed what u said in your first post, but i didnt understand what u mean, "result[1].Name", what is this function? what comes in the []? what goes on the front and what goes after the ".", dont forget, when someone asks something, is because they dont know, i will not understand without someone explaining what each part of the function means and how it can help on my problem. thanks

Posted (edited)

It's hard to completly explain how tables work, that's why i gave you a link.

In the brackets is the index of the table 1 means the first entry in the table. In this case this first entry is the first (and in this case the only ) returned row from the database. This is also a table (yes a table inside of an another : ) ) and it contains all the data of this row, the names of the keys of the this table are equal to the colum names in the database, and the values are the values of the of those colums in the given row . After the dot comes a name of a key from the second table, wiches value you want to get.

Edited by Guest
Posted
i dont want to be annoying but, how to get the value? and not table: 045D8820 from a table? anyway to convert this table code into the value? any function for that? thanks

When you try to output a table it does show its ID, you must call a member (something that is inside the table):

local myTable = {}; 
  
--now here we're going to try to output the table 
outputChatBox ( myTable ); -- it's going to output its ID 
  
--now we'll add something to the table 
myTable[1] = "Lua is so awesome."; -- this is going to set the value of the index (call it 'slot', if that's easier for you to understand) 1 to the string "Lua is so awesome." 
  
--okay, let's output the value of the index 1 
outputChatBox ( myTable[1] ); -- it's going to output "Lua is so awesome." 

Hope you got it :P

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