StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
primarykey
Id
379812
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2008-12-19T00:39:31.883
FavoriteCount
0
LastActivityDate
2008-12-19T00:55:06.657
LastEditDate
2008-12-19T00:55:06.657
LastEditorUserId
5324
OwnerUserId
5324
ParentId
379772
PostTypeId
2
Score
0
ViewCount
0
LastEditorDisplayName
Adam Pierce
text
Body
Create you own local copy of the data and change the pointer in the list: <pre><code>char **newentry = malloc(sizeof(char*) * 2); newentry[0] = strdup(myNewName); newentry[1] = strdup(myNewEmail); tableData[i] = newentry; </code></pre> That's the easy part. The hard part is freeing the memory when you are finished. If this is just a little throwaway C program, you can probably get away without freeing memory since the operating system will automatically free it when the app exits. But if you want to do it Properly with a capital 'P', I'd make a couple of little functions to copy and free table items: <pre><code>void tableFreeItem(int i) { if(tableData[i] != 0) { free(tableData[i][0]); free(tableData[i][1]); free(tableData[i]); } } void tableSetItem(int i, char *name, char *email) { tableFreeItem(i); tableData[i] = malloc(sizeof(char *) * 2); tableData[i][0] = strdup(name); tableData[i][1] = strdup(email); } </code></pre> Now we can replace items in the list at will and we can easily free the memory by calling the tableFreeItem() function. Here is an example of how you can use these functions: <pre><code>#define TABLE_SIZE 5 char **tableData[TABLE_SIZE + 1]; /* +1 to make room for NULL terminator */ /* Clear out the table. This also sets up the NULL terminator at the end. */ memset(tableData, 0, sizeof(tableData)); /* Copy the original data into the table */ for(i = 0; i < TABLE_SIZE; i++) tableSetItem(i, mydata[i][0], myData[i][1]); /* Change a data item */ tableSetItem(3, "Adam Pierce", "adam@doctort.org"); /* Free memory when we have finished */ for(i = 0; i < TABLE_SIZE; i++) tableFreeItem(i); </code></pre> DISCLAIMER: I have not tried to compile or run this code, I just banged it off from the top of my head. It will probably work.
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POCopy string to pointer to pointer
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USAdam Pierce
UserOwnerUserId
1. USAdam Pierce
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
1. This table or related slice is empty.

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.