mysql create index on table CREATE INDEX Syntax Creates an index on a table. Duplicate values are allowed: CREATE INDEX index_name ON table_name (column1, column2, …); CREATE UNIQUE INDEX Syntax Creates a unique index on a table. Duplicate values are not allowed: CREATE UNIQUE INDEX index_name ON table_name (column1, column2, …); Note: The syntax for creating indexes varies among different databases. Therefore: Check the syntax for … Read more
Linear search program in c #include <stdio.h> int main() { int array[100], search, c, n; printf(“Enter number of elements in array\n”); scanf(“%d”, &n); printf(“Enter %d integer(s)\n”, n); for (c = 0; c < n; c++) scanf(“%d”, &array[c]); printf(“Enter a number to search\n”); scanf(“%d”, &search); for (c = 0; c < n; c++) { if … Read more
History command in linux We will see how we can use history command effectively to extract the command which was executed by users in Bash shell. This may be useful for audit purpose or to find out what command is executed.
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