Beginning Databases with Postgre SQL phần 6 pps

... /usr/local/pgsql/data postgres 2009 20 06 0 13:32 tty1 00:00:00 postgres: writer process postgres 2010 20 06 0 13:32 tty1 00:00:00 postgres: stats buffer postgres 2011 2010 0 13:32 tty1 00:00:00 postgres: ... collector postgres 13180 20 06 0 19:51 tty1 00:00:00 postgres: rick bpsimple 192. 168 .0.2(3170) idle postgres 13181 20 06 0 19:51 tty1 00:00:00 postgres: rick example1 192. 168...

Ngày tải lên: 09/08/2014, 14:20

... replaced with =#. psql commands are of two different types: • SQL commands: We can issue any SQL statement that PostgreSQL supports to psql, and it will execute it. • Internal commands: These are psql ... 5-17. MatthewStones_4789C05.fm Page 1 36 Monday, February 14, 2005 12:00 PM 124 CHAPTER 5 ■ POSTGRESQL COMMAND-LINE AND GRAPHICAL TOOLS Figure 5-4. Creating a PostgreSQL data source...

Ngày tải lên: 09/08/2014, 14:20

... conformance to SQL9 2: Entry SQL, Intermediate SQL, and Full SQL. By far, the most common conformance level is Entry SQL. ■Note PostgreSQL is very close to SQL9 2: Entry SQL conformance, with only ... to pronounce PostgreSQL). PostgreSQL is also the foundation of the former Red Hat Database, now known as PostgreSQL- Red Hat Edition. You can find more on this version of PostgreSQL a...

Ngày tải lên: 09/08/2014, 14:20

... for PostgreSQL postgresql-pl PostgreSQL server support for Perl postgresql-python PostgreSQL server support for Python postgresql-tcl PostgreSQL server support for Tcl postgresql-test PostgreSQL ... shown in Figure 3-1. postgresql-devel Header files and libraries for development postgresql-docs Documentation postgresql-jdbc Java database connectivity for PostgreSQL postgresql-odbc Open databa...

Ngày tải lên: 09/08/2014, 14:20

... VALUES(-32 768 , -1234 567 89, 1234 567 89.1234 567 89, test-> 234 567 89.1234 567 89, 1234 567 89.1234 567 89); ERROR: numeric field overflow DETAIL: The absolute value is greater than or equal to 10^8 for field with ... VALUES(-100, -100, 123.4 567 89, 123.4 567 89, 123.4 567 89); INSERT 17884 1 test=> INSERT INTO testtype VALUES(-32 768 , -1234 567 89, 1.234 567 89, test-> 1.23...

Ngày tải lên: 09/08/2014, 14:20

... of the PostgreSQL documentation. ■Tip The PostgreSQL documentation can be installed as a set of HTML pages that can be viewed locally with any web browser. Select file://usr/local/pgsql/doc/html/index.html ... in Sybase or SET IMPLICIT_TRANSACTIONS for Microsoft SQL Server. In PostgreSQL, all you need to do is issue the command BEGIN, and PostgreSQL automatically switches into a mode wh...

Ngày tải lên: 09/08/2014, 14:20

... Wednesday, February 23, 2005 6: 49 AM 392 CHAPTER 13 ■ ACCESSING POSTGRESQL FROM C USING LIBPQ Executing SQL with libpq Now that we can connect to a PostgreSQL database from within a C program, the ... quotes within the SQL statement will need to be escaped with back- slashes, as is necessary with psql. As with connection structures, result objects must also be freed when we are...

Ngày tải lên: 09/08/2014, 14:20

... 6: 44 PM 442 CHAPTER 14 ■ ACCESSING POSTGRESQL FROM C USING EMBEDDED SQL EXEC SQL include sqlca; EXEC SQL whenever sqlwarning sqlprint; EXEC SQL whenever sqlerror do GiveUp(); void GiveUp() { fprintf(stderr, ... SQL open mycursor; EXEC SQL whenever sqlwarning continue; EXEC SQL whenever sqlerror continue; while(sqlca.sqlcode == 0) { MatthewStones_4789.book Page 442 Wedne...

Ngày tải lên: 09/08/2014, 14:20

... shows the PostgreSQL data types for date and time. Character Types Table B-5 shows the PostgreSQL character data types. Table B-4. PostgreSQL Types for Date and Time SQL Name PostgreSQL Alternative ... March 4, 2005 6: 33 PM 548 APPENDIX B ■ POSTGRESQL DATA TYPES Geometric Types Table B -6 shows the PostgreSQL geometric data types. These are specific to PostgreSQL, so there are no SQL...

Ngày tải lên: 09/08/2014, 14:20

... large objects LOCK command, 567 locking, 262 – 266 deadlocks, 262 – 264 exclusive locks, 262 explicit locking, 264 – 266 locking rows, 265 – 266 locking tables, 266 shared locks, 262 LOG exception level, ... 119 EXPLAIN command, 89, 566 ANALYZE option, 350 query plan, 349, 350 explicit locking, 264 – 266 desirability of, 264 locking rows, 265 – 266 locking tables, 266 explicit tr...

Ngày tải lên: 09/08/2014, 14:20