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An /etc/inittab entry takes the form of a line with four colon-separated fields. The first field is a unique identifier for the entry, of one to four characters in length. The second field is a list of the runlevels in which the entry should be run. In these examples, each of the entries will be run in runlevels 2 through 5. The third field names the action to be taken, which in this case is respawn. (init can perform a number of actions besides respawn on a process, such as once, off, boot, and wait.) The last field is the script or program that you want to run. Respawn entries are likely to be part of the default /etc/inittab file for starting the boot-time rc scripts or getty login sessions, as seen in the preceding sample entries. I have also used init in this way to make sure monitors that are critical to tracking system health are always running. The init process is the top dog of all processes on a running system; if it can t keep processes running, your system is probably fairly sick and you are likely to have bigger problems than deficient monitors. The following is an example of an entry I have used for my system monitors in the /etc/ inittab. The im identifier is arbitrary and needs only to be unique in the file as a whole. It simply identifies the entry in the file. The process is run on runlevels 3 and 5 and is respawned if it dies. It executes the MyMonitors script.

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Here are some examples of using the WHERE clause: SQL> SQL> SQL> SQL> SQL> SQL> SELECT SELECT SELECT SELECT SELECT SELECT employee_id employee_id employee_id employee_id employee_id employee_id WHERE WHERE WHERE WHERE WHERE WHERE salary salary salary salary salary salary = 50000; < 50000; > 50000; <= 50000; >= 50000; ! 50000;

The LIKE condition uses pattern matching to restrict rows in a SELECT statement. Here s an example: SQL> SELECT employee_id, last_name FROM employees 2* WHERE last_name LIKE 'Fa%'; EMPLOYEE_ID LAST_NAME -------------------109 Faviet 202 Fay SQL> The pattern that you want the WHERE clause to match should be enclosed in single quotes (' '). In the preceding example, the percent sign (%) indicates that the letters Fa can be followed by any character string. Thus, the percent sign acts as a wildcard for one or more characters, performing the same job as the asterisk (*) in many operating systems. Note that a single underscore character (_) acts as a wildcard for one and only one character.

The INSERT statement enables you to add new data to a table, including duplicate data if there are no unique requirements enforced by a primary key or an index. The general form of the INSERT statement is as follows: INSERT INTO <table> [(<column i, . . . , column j>)] VALUES (<value i, . . . ,value j>); Here is an example of the insert command: SQL> INSERT INTO employees( 2 employee_id,last_name,email,hire_date,job_id) 3 VALUES 4* (56789,'alapati','salapati@netbsa.org', sysdate,98765); 1 row created. SQL> In the preceding list, the column names were specified because only some columns were being populated in the row being inserted. The rest of them are left blank, which is okay, provided the column isn t defined as a not null column. If you re inserting values for all the columns of a table, you can use the simpler INSERT statement shown here: SQL> INSERT INTO department VALUES (34567, 'payroll', 'headquarters', 'dallas'); 1 row created. SQL>

Since the compiler switch /clr:safe does not support native types, safe assemblies do not depend on the C/C++ runtime library (CRT) at all. For the compilation models /clr and /clr:pure, only the DLL variants of the CRT are supported. Table 7-2 shows the compiler switches for choosing a variant of the CRT. Table 7-2. C/C++ Runtime Variants

If you want to insert all the columns of a table into another table, you can use the following INSERT statement: SQL> INSERT INTO b SELECT * FROM a WHERE city='DALLAS'; If table b doesn t exist, you can use the CREATE TABLE table_name AS SELECT * FROM (CTAS) statement, as shown here: SQL> CREATE table b as SELECT * FROM a;

im:35:respawn:/bin/nice /usr/local/bin/MyMonitors >/dev/null 2>&1