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Does PostgreSQL support “accent insensitive” collations?
...t's possible to specify an "accent insensitive" collation (for a database, table or column), which means that it's possible for a query like
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Why does parseInt(1/0, 19) return 18?
...es as if you called parseInt("I", 19), which converts to decimal 18 by the table above.
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An efficient way to transpose a file in Bash
... interestingly it prints out a directory listing for the first line of the table. I don't know enough BASH to figure out why.
– bugloaf
Jun 19 '13 at 19:50
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python requests file upload
...the following results. Before, running the open there is no record in lsof table about the filename. Then after the open is executed, multiple records appear with read access. After executing the requests.post, the records are still there indicating that the file did not close.
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dynamically add and remove view to viewpager
...ate static final int DATABASE_VERSION = 1;
private static final String TABLE_NAME = "diary";
private static final String TITLE = "id";
private static final String BODY = "content";
DBHelper dbHelper = new DBHelper(this);
ArrayList<String> frags = new ArrayList<String>...
ggplot2 keep unused levels barplot
...1$type <- factor(df1$type, levels=c("A","B", "C"))
df <- data.frame(table(df))
df1 <- data.frame(table(df1))
df$plot = "A"
df1$plot = "B"
df <- rbind(df, df1)
ggplot(df, aes(x=group, y=Freq, fill=type)) + geom_bar(position="dodge", stat="identity") + facet_wrap( ~ plot, scales="free"...
View HTTP headers in Google Chrome?
...ick on the network tab you see an overview at first on the right side in a table format with a timeline graph. If you click on an individual file from the list at the left you will then see the tabs shown in the picture above (including the Headers tab). This is what @Tower meant by "click on them...
Single Sign On across multiple domains [closed]
...ou can bang out a cookie-based solution. Think GUID and a database session table.
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Difference between Hashing a Password and Encrypting it
...rrence of collisions. You can attack a secure hash by the use of a rainbow table, which you can counteract by applying a salt to the hash before storing it.
Encrypting is a proper (two way) function. It's reversible, you can decrypt the mangled string to get original string if you have the key.
Th...
Insert text with single quotes in PostgreSQL
I have a table test(id,name) .
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