Example of help menu and database information
Example of PostgreSQL-8.1(pgbashrc-8.1)
- Help menu
pgbash> ?
Informational
? : this help (add '+' for more detail)
?h [SQL] : help on syntax of SQL commands
?l[+] : list databases
?d [NAME] : describe table,view,index, or sequence
?d{t|i|v|s}[+] : list {tables/indexes/views/sequences}
?dS[+] : list system tables
?da : list aggregate functions
?db[+] : list tablespaces
?dc : list conversions
?dC : list casts
?dd : show comment for object
?dD : list domains
?df[+] : list functions
?dn[+] : list schemas
?do : list operators
?dp : list table, view, and sequence access privileges, same as ?z
?dT[+] : list data_types
?du : list roles (users), same as ?dg
Large Objects
?lo_import : lo_import <'COMMENT'>
?lo_export : lo_export
?lo_unlink : lo_unlink
?lo_list : list LARGE OBJECTs, same as ?dl
Connection
?con[nect] DBNAME[@SERVER][:PORT] [CONNECT_NAME [USERID [PASSWORD]]]
: connect to new database
?set[connection] CONNECT_NAME
: change database connection
?dis[connect] {CONNECT_NAME | ALL}
: disconnect databases
?encoding [ENCODING]
: show or set client encoding
?password USERNAME
: securely change the password for a user
Status
?dbc[onnection]: show database connection
?opt[ion] : show current values of exec_sql_OPTIONs
?sta[tus] : show STATUS after executing SQL
?ver[sion] : show PostgreSQL and pgbash VERSION
Formatting
E{+|-} : turn on/off ECHO_QUERY sent to the backend
L{+|-} : turn on/off OUTER_FRAME_print
T{+|-} : turn on/off TOP_header_print
B{+|-} : turn on/off BOTTOM_count_print
A{+|-} : turn on/off ALIGNMENT of plain text
X{+|-} : turn on/off EXPANDED format
H{+|-} : turn on/off HTML table format
C+ [chr] : set CAPTION string or DEFAULT('')
S+ [chr] : set SEPARATOR (e.g. ',' ) or DEFAULT('|')
N+ [str] : set NULL_STRING(e.g. '*N*') or DEFAULT('')
Z+ [str] : set ZERO_STRING(e.g. '*0*') or DEFAULT('')
Pgbash help
?? : help with pgbash usage
??connect : help with CONNECTION usage
??sql : help with SQL usage
??sqlcode : help with SQLCODE
??exec_sql : help with 'exec_sql' usage
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- SQL syntax
(1) List of SQL reserved words
pgbash> ?h
ABORT CREATE LANGUAGE DROP VIEW
ALTER AGGREGATE CREATE OPERATOR CLASS END
ALTER CONVERSION CREATE OPERATOR EXECUTE
ALTER DATABASE CREATE ROLE EXPLAIN
ALTER DOMAIN CREATE RULE FETCH
ALTER FUNCTION CREATE SCHEMA GRANT
ALTER GROUP CREATE SEQUENCE INSERT
ALTER INDEX CREATE TABLE LISTEN
ALTER LANGUAGE CREATE TABLE AS LOAD
ALTER OPERATOR CLASS CREATE TABLESPACE LOCK
ALTER OPERATOR CREATE TRIGGER MOVE
ALTER ROLE CREATE TYPE NOTIFY
ALTER SCHEMA CREATE USER PREPARE
ALTER SEQUENCE CREATE VIEW PREPARE TRANSACTION
ALTER TABLE DEALLOCATE REINDEX
ALTER TABLESPACE DECLARE RELEASE SAVEPOINT
ALTER TRIGGER DELETE RESET
ALTER TYPE DROP AGGREGATE REVOKE
ALTER USER DROP CAST ROLLBACK
ANALYZE DROP CONVERSION ROLLBACK PREPARED
BEGIN DROP DATABASE ROLLBACK TO SAVEPOINT
CHECKPOINT DROP DOMAIN SAVEPOINT
CLOSE DROP FUNCTION SELECT
CLUSTER DROP GROUP SELECT INTO
COMMENT DROP INDEX SET
COMMIT DROP LANGUAGE SET CONSTRAINTS
COMMIT PREPARED DROP OPERATOR CLASS SET ROLE
COPY DROP OPERATOR SET SESSION AUTHORIZATION
CREATE AGGREGATE DROP ROLE SET TRANSACTION
CREATE CAST DROP RULE SHOW
CREATE CONSTRAINT TRIGGER DROP SCHEMA START TRANSACTION
CREATE CONVERSION DROP SEQUENCE TRUNCATE
CREATE DATABASE DROP TABLE UNLISTEN
CREATE DOMAIN DROP TABLESPACE UPDATE
CREATE FUNCTION DROP TRIGGER VACUUM
CREATE GROUP DROP TYPE
CREATE INDEX DROP USER
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(2) SQL syntax
pgbash> ?h crete database
Command: CREATE DATABASE
Description: create a new database
Syntax:
CREATE DATABASE name
[ [ WITH ] [ OWNER [=] dbowner ]
[ TEMPLATE [=] template ]
[ ENCODING [=] encoding ]
[ TABLESPACE [=] tablespace ]
[ CONNECTION LIMIT [=] connlimit ] ]
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- How to use Pgbash SQL
pgbash> ??sql
# SQL usage:
Type '[timespec] SQL; [pipeline][redirection][&]'
ex)
select * from test limit 300;
select * from test; > /tmp/test.dat
select * from test; >> /tmp/test.dat &
select * from test; | more
time select * from test limit 300;
select code, name into :code, :name from test;
if [ $code = '101' ]; then
echo "code=$code name=$name"
fi
begin;
declare cur cursor for select code,name from test order by code;
while (( $SQLCODE == $SQL_OK )); do
fetch in cur into :code, :name;
if (( $SQLCODE < 0 || $SQLCODE == $SQL_NOT_FOUND)); then
break
else
echo "code=$code name=$name"
fi
done
end;
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- Error code
pgbash> ??sqlcode
# SQLCODE
ex)
begin;
declare cur cursor for select code,name from test order by code;
while (( $SQLCODE == $SQL_OK )); do
fetch in cur into :code, :name;
if (( $SQLCODE < 0 || $SQLCODE == $SQL_NOT_FOUND)); then
break
else
echo "code=$code name=$name"
fi
done
end;
-------------------------+-------------------------------------------+--------
Value Name | Comment | Value
-------------------------+-------------------------------------------+--------
$SQL_OK | normal end. |0
$SQL_NOT_FOUND | EOF(End Of File). |100
$SQL_OUT_OF_MEMORY | out of memory. |-12
$SQL_SYSTEM_ERROR | system error. |-200
$SQL_TOO_MANY_ARGUMENTS | too many arguments in fetch_stmt. |-201
$SQL_TOO_FEW_ARGUMENTS | too few arguments in fetch_stmt. |-202
$SQL_CONNECT_ERROR | database connection error. |-203
$SQL_INT_FORMAT | int format error. |-204
$SQL_UINT_FORMAT | uint format error. |-205
$SQL_FLOAT_FORMAT | float format error. |-206
$SQL_NUMERIC_FORMAT | numeric format error. |-207
$SQL_INTERVAL_FORMAT | interval format error. |-208
$SQL_DATE_FORMAT | date format error. |-209
$SQL_TIMESTAMP_FORMAT | timestamp format error. |-210
$SQL_CONVERT_BOOL | convert bool error. |-211
$SQL_EMPTY | empty. |-212
$SQL_MISSING_INDICATOR | missing_indicator. |-213
$SQL_NO_ARRAY | no array. |-214
$SQL_DATA_NOT_ARRAY | data not array. |-215
$SQL_ARRAY_INSERT | array insert error. |-216
$SQL_NO_CONN | no connection. |-220
$SQL_NOT_CONN |can not connection. |-221
$SQL_INVALID_STMT | invalid statements. |-230
$SQL_READONLY_SHELLVAR | can not set read-only shell variable. |-231
$SQL_DB_NOT_OPEN | database not open. |-232
$SQL_CNAME_NOT_FOUND | connect-name not found. |-233
$SQL_CNAME_ALREADY_USE | connect-name already exist. |-234
$SQL_INVALID_COMMAND | invalid command. |-235
$SQL_INVALID_DATA | invalid data. |-236
$SQL_UNKNOWN_DESCRIPTOR | unknown descriptor. |-240
$SQL_INVALID_DESC_INDEX | invalid descriptor index. |-241
$SQL_UNKNOWN_DESC_ITEM | unknown descriptor item. |-242
$SQL_VAR_NOT_NUMERIC | variable not numeric. |-243
$SQL_VAR_NOT_CHAR | variable not charater. |-244
$SQL_BAD_RESPONSE | bad response(backend maybe died). |-400
$SQL_EMPTY_QUERY | empty query (backend lost query). |-401
$SQL_CONNECTION_BAD | connection bad(disconnect backend) |-403
$SQL_FATAL_ERROR | query fatal error (SQL error on backend)|-403
$SQL_NONFATAL_ERROR | query nonfatal error(SQL error on backend)|-404
$SQL_NULL | indicator is NULL. |-1
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- exec_sq options
pgbash> ??ecec_sql
exec_sql: exec_sql [option] ["SQL"]
--------------------- show infomations ---------------------
-h item show exec_sql OPTION or sql_ERRCODE(item: OP or ER)
-v show PostgreSQL and PGBASH VERSION
-m show CONNECTION NAMEs
-s show STATUS after executing SQL
--------------------- temporary options --------------------
-d conn set CONNECTION NAME
-e turn on ECHO query sent to the backend
-q turn on QUIET system/sql error messages
-H turn on HTML format(-H is default in CGI mode)
-X turn on EXPANDED format
-L turn on OUTER_FRAME of PLAIN text
-A turn off ALIGNMENT of PLAIN text
-T turn off TOP_header print
-B turn off BOTTOM_count print
-C cap set CAPTION of HTML/PLAIN table(e.g. -C 'TITLE')
-S sep set SEPARATOR of PLAIN text field (default is '|')
-N null set NULL_STRING(e.g. -N '*N*')
-Z zero set ZERO_STRINg(e.g. -Z '*0*')
--------------------- execute function --------------------
-x func execute func(e.g. lo_import, lo_export, lo_unlink)
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- List of database connection
pgbash> ?dbc
# List of database connection (C: current database is '*')
+---+--------------+-----------+-----------------------------+-----------------+
| C | connect_name | user_name | target_name(db@server:port) | client_encoding |
+---+--------------+-----------+-----------------------------+-----------------+
| * | _DEFAULT_ | pgbash | pgbash:5432 | |
| | pgbash | pgbash | pgbash@db.psn.ne.jp:8408 | |
+---+--------------+-----------+-----------------------------+-----------------+
(2 rows)
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- Value of options
pgbash> ?opt
# EXEC_SQL_OPTION
Usage:
set EXEC_SQL_OPTION DEFAULT ; --- reset DEFAULT
set EXEC_SQL_OPTION CGI ; --- set CGI mode
set <option_name>[=value] ;
ex)
SET OPTION_ECHO; or SET OPTION_ECHO=ON; or SET OPTION_ECHO=TRUE;
SET OPTION_BOTTOM=OFF; or SET OPTION_BOTTOM=FALSE;
set OPTION_SEPARATOR=',';
set OPTION_NULLSTRING="\N";
+-------------------+-------------------------+-------+---------------
| | Comment |DEFAULT| Current Value
+-------------------+-------------------------+-------+---------------
| OPTION_ECHO | turn on/off ECHO query | OFF | OFF
| OPTION_QUIET | turn on/off QUIET mode | OFF | OFF
| OPTION_HEADER | turn on/off TOP_header | ON | ON
| OPTION_BOTTOM | turn on/off BOTTOM_print| ON | ON
| OPTION_ALIGNMENT | turn on/off ALIGNMENT | ON | ON
| OPTION_FRAME | turn on/off OUTER_FRAME | OFF | OFF
| OPTION_EXPANDED | turn on/off EXPANDED | OFF | OFF
| OPTION_SEPARATOR | set SEPARATOR character | '' | ''
| OPTION_NULLSTRING | set NULL string | "" | ""
| OPTION_ZEROSTRING | set ZERO string | "" | ""
| OPTION_CAPTION | set CAPTION | "" | ""
+-------------------+-------------------------+-------+---------------
[ CGI_mode / HTML_output_mode ]
+-------------------+-------------------------+-------+---------------
| | Comment |DEFAULT| Current Value
+-------------------+-------------------------+-------+---------------
| OPTION_HTML | turn on/off HTML mode | OFF | OFF
| OPTION_TABLETAG | set HTML table tag | "" | ""
| OPTION_HEADERTR | set HTML header <TR> | "" | ""
| OPTION_HEADERTH | set HTML header <TH> | "" | ""
| OPTION_BODYTAG | set HTML body <TD> tag | "" | ""
| OPTION_INPUTTAG | turn on/off INPUT tag | OFF | OFF
| OPTION_INPUTSIZE | set HTML input tag SIZE | "" | ""
+-------------------+-------------------------+-------+---------------
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- Status after executing SQL
(1) The case of normal end
pgbash> ?sta
# SQL status
SQLCODE = 0 (SQL error code)
SQLNTUPLE = 2 (number of tuples)
SQLNFIELD = 3 (number of fields)
SQLERRML = 0 (length of SQLERRMC)
SQLERRMC =
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(2) The case of abnormal end
pgbash> select aa,bb from test;
(-403)ERROR: attribute 'aa' not found
pgbash> ?sta
# SQL status
SQLCODE = -403 (SQL error code)
SQLNTUPLE = 0 (number of tuples)
SQLNFIELD = 0 (number of fields)
SQLERRML = 33 (length of SQLERRMC)
SQLERRMC = ERROR: attribute 'aa' not found
|
- Version number
pgbash> ?ver
# PostgreSQL 8.1.23 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 4.1.2 20..
# Pgbash ( bash-3.2.48(5)-release ) Patch Ver.8 r3.2
# Pgbashrc Version 8.1
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- List of database users
pgbash> ?du
[ List of roles ]
Role name | Superuser | Create role | Create DB | Connections | Member of
-----------+-----------+-------------+-----------+-------------+-----------
pgbash | no | no | yes | no limit |
postgres | yes | yes | yes | no limit |
(2 rows)
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- List of databases
pgbash> ?l
[ List of databases ]
Name | Owner | Encoding
-----------+----------+----------
pgbash | pgbash | UTF8
postgres | postgres | UTF8
template0 | postgres | UTF8
template1 | postgres | UTF8
(4 rows)
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- List of relations
(1) List of relation names.
pgbash> ?d
[ List of relations ]
Schema | Name | Type | Owner
--------+-----------------+----------+--------
public | member | table | pgbash
public | member_log | table | pgbash
public | member_log_view | view | pgbash
public | member_passwd | table | pgbash
public | member_seq | sequence | pgbash
public | test | table | pgbash
public | test_inherit | table | pgbash
public | test_sequence | sequence | pgbash
public | test_table | table | pgbash
public | test_table2 | table | pgbash
public | test_table_dept | table | pgbash
public | test_view | view | pgbash
(12 rows)
|
(2) List of attributes of relation
pgbash> ?d member
[ Table "test_table" ]
Column | Type | NotNull | Default
----------+-----------------------+----------+--------------------------
code | integer | not null |
name | character varying(32) | | 'aaa'::character varying
address | character varying(64) | |
dept_id | character(4) | | '001'::bpchar
jobid | character(3) | not null | '999'::bpchar
inherits | test_table2 | |
(6 rows)
Indexes
test_table_pkey : CREATE UNIQUE INDEX test_table_pkey ON test_table...
ix_jobid : CREATE INDEX ix_jobid ON test_table USING btree (jobid)
Check constraints
ch_code : CHECK (code >= 1 AND code <= 9999)
ch_jobid : CHECK (jobid >= 'aaaa'::bpchar AND jobid <= 'zzzz'::bpchar)
Foreign keys
test_table_dept_id_fkey : FOREIGN KEY (dept_id) REFERENCES test_table_dept..
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- List of tables
pgbash> ?dt
[ List of tables ]
Schema | Name | Type | Owner
--------+-----------------+-------+--------
public | member | table | pgbash
public | member_log | table | pgbash
public | member_passwd | table | pgbash
public | test | table | pgbash
public | test_inherit | table | pgbash
public | test_table | table | pgbash
public | test_table2 | table | pgbash
public | test_table_dept | table | pgbash
(8 rows)
|
- List of indexes
pgbash> ?di
[ List of indexes ]
Schema | Name | Type | Owner | Table
--------+----------------------+-------+--------+-----------------
public | ix_jobid | index | pgbash | test_table
public | member_email | index | pgbash | member
public | member_name | index | pgbash | member
public | member_passwd_pkey | index | pgbash | member_passwd
public | member_pkey | index | pgbash | member
public | member_tel | index | pgbash | member
public | test_table2_pkey | index | pgbash | test_table2
public | test_table_dept_pkey | index | pgbash | test_table_dept
public | test_table_pkey | index | pgbash | test_table
(9 rows)
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- List of views
pgbash> ?dv
[ List of views ]
Schema | Name | Type | Owner
--------+-----------------+------+--------
public | member_log_view | view | pgbash
public | test_view | view | pgbash
(2 rows)
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- List of large objects
pgbash> ?dl (or _lo_list)
[ List of large objects ]
OID | Description
--------+--------------
118865 | member data1
118867 | member data2
(2 rows)
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- List of permission
pgbash> ?dp
[ List of access privileges ]
Schema | Name | Type | Access privileges
--------+-----------------+----------+-------------------------
public | member | table | {pgbash=arwdRxt/pgbash}
public | member_log | table |
public | member_log_view | view |
public | member_passwd | table | {pgbash=arwdRxt/pgbash}
public | member_seq | sequence |
public | test | table |
public | test_inherit | table |
public | test_sequence | sequence |
public | test_table | table |
public | test_table2 | table |
public | test_table_dept | table |
public | test_view | view |
(12 rows)
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- List of sequnces
pgbash> ?ds
[ List of sequences ]
Schema | Name | Type | Owner
--------+---------------+----------+--------
public | member_seq | sequence | pgbash
public | test_sequence | sequence | pgbash
(2 rows)
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