是不是受够了安装了oracle database之后sqlplus的简陋，无法删除无法上下翻页的苦恼。
可以安装readline和rlwrap插件的话，配置.bahs_profile后也能解决上下翻页这些，但是很多生产环境无法安装rpm包。
oracle提供了sqlcl免费许可，sqlcl依赖于java，比sqldeveloper小，小巧的同时改善了sqlplus的功能。在完全兼容23ai的同时还支持vector属性。
rpm安装完毕Oracle 23 ai free之后，其实在23ai的路径中默认带了sqlcl 25.1，需要配置JDK变量即可调用sqlcl。
一、23 ai free 默认路径下的 sqlcl中调用
1. 设置环境变量调用sqlcl
[oracle@OL96TC ~]$ cat ~/.bash_profile
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
export ORACLE_HOME=/opt/oracle/product/23ai/dbhomeFree
export ORACLE_SID=FREE
export PATH=$ORACLE_HOME/bin:$PATH
export PATH=$PATH:/opt/oracle/product/23ai/dbhomeFree/sqlcl/bin
export PATH=$PATH:/opt/oracle/product/23ai/dbhomeFree/jdk/bin
export PATH=$PATH:$JAVA_HOME/bin2. TrueCache辅库上继续使用sqlcl
可以查询主库中新建的表deparments3，
但是由于数据TrueCache，无法查询到表的objects信息
[oracle@OL96TC ~]$ sql / as sysdba;
SQLcl: Release 25.1 Production on Sun Jun 08 16:16:18 2025
Copyright (c) 1982, 2025, Oracle. All rights reserved.
Connected to:
Oracle Database 23ai Free Release 23.0.0.0.0 - Develop, Learn, and Run for Free
Version 23.8.0.25.04
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
_________ ___________ ____________ _____________
2 PDB$SEED READ ONLY NO
3 FREEPDB1 READ ONLY NO
SQL> alter session set container=FREEPDB1;
Session altered.
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
_________ ___________ ____________ _____________
3 FREEPDB1 READ ONLY NO
SQL> info deparments3;
ERROR:
ORA-04043: object deparments3 does not exist
SQL> select * from departments3;
DEPT_ID DEPT_NAME LOCATION BUDGET
__________ ______________ _____________ _________
1 Research Building 7 750000
2 Research Building 7 750000
100 Development Building 5 900000
4 Marketing Building 3 650000
SQL>二、SQLcl 的核心特性
在生产主机上很多sqlplus难以实现的，Tab自动补全是最为好用的，
Tab键来补全语句关键字、table的名字，column的名字等，当某些table、视图中当中的列name巨长的时候，是不是得心应手。
- - 智能补全（表名/列名/函数）
- - 语法高亮显示
- - 多行编辑支持（类似 IDE）
SQL> help
For help on a topic type help <topic>
List of Help topics available:
/ @ @@ ACCEPT ALIAS APEX APPEND
AQ ARBORI ARCHIVE_LOG ARGUMENT AWR BACKGROUND BLOCKCHAIN_TABLE
BREAK BRIDGE BTITLE CD CERTIFICATE CHANGE CLEAR
CLOUDSTORAGE CODESCAN COLUMN COMPUTE CONNECT CONNMGR COPY
CS CTAS DATAPUMP DBCCRED DDL DEFINE DEL
DESCRIBE DG DIRS DISCONNECT EDIT EXECUTE EXIT
FILES FIND FORMAT GET HISTORY HOST IMMUTABLE_TABLE
INFORMATION INPUT JOBS LIQUIBASE LIST LOAD MDB
MIGRATEADVISOR MLE MODELER NET OCI OCIDBMETRICS OERR
ORAPKI PASSWORD PAUSE POPD PRINT PROJECT PROMPT
PUSHD QUIT REMARK REPEAT RESERVED_WORDS REST RUN
SAVE SCRIPT SDK SECRET SET SHOW SHUTDOWN
SODA SPOOL SSHTUNNEL START STARTUP STORE TIMING
TNSPING TOSUB TTITLE UNDEFINE UNLOAD VARIABLE VAULT
WAIT4 WHENEVER WHICH XQUERY
SQL> select * FROM V$VERSION
--习惯小写的命令，自动TAB补全的是大写2. 丰富的输出格式
sqlformat格式化--OCM考试好用。通过设置sqlformat，可以设置不同输出的格式
SET SQLFORMAT JSON/CSV/HTML/XML
default
ansiconsole
csv
insert – lists resuts as an insert statement
loader – pipe-delimited
delimited – same as csv
xml
html
fixed – fixed width
text
json2.1 设置sqlformant jason
SYS@CDB$ROOT> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
_________ ___________ _____________ _____________
3 FREEPDB1 READ WRITE NO
SYS@CDB$ROOT> set sqlformat json
SYS@CDB$ROOT> select * from departments3;
{"results":[{"columns":[{"name":"DEPT_ID","type":"NUMBER"},{"name":"DEPT_NAME","type":"VARCHAR2"},{"name":"LOCATION","type":"VARCHAR2"},{"name":"BUDGET","type":"NUMBER"}],"items":
[
{"dept_id":1,"dept_name":"Research","location":"Building 7","budget":750000}
,{"dept_id":2,"dept_name":"Research","location":"Building 7","budget":750000}
,{"dept_id":100,"dept_name":"Development","location":"Building 5","budget":900000}
,{"dept_id":4,"dept_name":"Marketing","location":"Building 3","budget":650000}
]}]}
SYS@CDB$ROOT>2.2 设置XML格式
SYS@CDB$ROOT> set sqlformat xml
SYS@CDB$ROOT> select * from departments3;
<?xml version='1.0' encoding='UTF-8' ?>
<RESULTS>
<ROW>
<COLUMN NAME="DEPT_ID"><![CDATA[1]]></COLUMN>
<COLUMN NAME="DEPT_NAME"><![CDATA[Research]]></COLUMN>
<COLUMN NAME="LOCATION"><![CDATA[Building 7]]></COLUMN>
<COLUMN NAME="BUDGET"><![CDATA[750000]]></COLUMN>
</ROW>
<ROW>
<COLUMN NAME="DEPT_ID"><![CDATA[2]]></COLUMN>
<COLUMN NAME="DEPT_NAME"><![CDATA[Research]]></COLUMN>
<COLUMN NAME="LOCATION"><![CDATA[Building 7]]></COLUMN>
<COLUMN NAME="BUDGET"><![CDATA[750000]]></COLUMN>
</ROW>
<ROW>
<COLUMN NAME="DEPT_ID"><![CDATA[100]]></COLUMN>
<COLUMN NAME="DEPT_NAME"><![CDATA[Development]]></COLUMN>
<COLUMN NAME="LOCATION"><![CDATA[Building 5]]></COLUMN>
<COLUMN NAME="BUDGET"><![CDATA[900000]]></COLUMN>
</ROW>
<ROW>
<COLUMN NAME="DEPT_ID"><![CDATA[4]]></COLUMN>
<COLUMN NAME="DEPT_NAME"><![CDATA[Marketing]]></COLUMN>
<COLUMN NAME="LOCATION"><![CDATA[Building 3]]></COLUMN>
<COLUMN NAME="BUDGET"><![CDATA[650000]]></COLUMN>
</ROW>
</RESULTS>
SYS@CDB$ROOT>2.3 设置HTML
SYS@CDB$ROOT> set sqlformat HTML
SYS@CDB$ROOT> select * from departments3;
<!DOCTYPE html>
<html>
<head>
<meta charset='UTF-8'>
<title>Result Data</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
* {
margin: 0;
padding: 0;
}
body {
font: 14px/1.4 Palatino, Serif;
}3. 免客户端安装
- - 独立运行（仅需 Java）
- - 支持所有连接方式：
sql user/pwd@host:port/service
sql /@tns_alias
4. 高级调试功能
- - 实时 SQL 监控
- - 可视化执行计划
- - 历史命令性能分析
4.1 SQLcl支持历史指令检索的功能，默认是100个，可以单独设置数量。
循环复写，上下箭头操作，可以显示完整的指令，HISTORY FULL会隔行显示。
history
SQL> history;
History:
alter session set container = FREEPDB1;
SQL>HISTORY USAGE，会显示单条语句的执行次数
SQL> history usage;
1 (1) alter session set container =FREEPDB1;
2 (1) info t
3 (1) alter session set container = FREEPDB1;
4 (1) info table departments3;
SQL>HISTORY TIME，会显示单条语句的执行时间统计，是不是很有用
SQL> history time;
1 (00.366) alter session set container =FREEPDB1;
SQL>4.2 info显示各种统计信息，打包信息
SYS@CDB$ROOT> info dbms_stats.gather_table_stats;
Package
/* Package SYS.DBMS_STATS */
/* PROCEDURE SYS.DBMS_STATS.GATHER_TABLE_STATS */
SYS.DBMS_STATS.GATHER_TABLE_STATS( OWNNAME => p_IN_param0 /* VARCHAR2 */,
TABNAME => p_IN_param1 /* VARCHAR2 */,
PARTNAME => p_IN_param2 /* VARCHAR2 */,
ESTIMATE_PERCENT => p_IN_param3 /* NUMBER */,
BLOCK_SAMPLE => p_IN_param4 /* BOOLEAN */,
METHOD_OPT => p_IN_param5 /* VARCHAR2 */,
DEGREE => p_IN_param6 /* NUMBER */,
GRANULARITY => p_IN_param7 /* VARCHAR2 */,
CASCADE => p_IN_param8 /* BOOLEAN */,
STATTAB => p_IN_param9 /* VARCHAR2 */,
STATID => p_IN_param10 /* VARCHAR2 */,
STATOWN => p_IN_param11 /* VARCHAR2 */,
NO_INVALIDATE => p_IN_param12 /* BOOLEAN */,
STATTYPE => p_IN_param13 /* VARCHAR2 */,
FORCE => p_IN_param14 /* BOOLEAN */,
CONTEXT => p_IN_param15 /* VARRAY */,
OPTIONS => p_IN_param16 /* VARCHAR2 */);
/* FUNCTION SYS.DBMS_STATS.GATHER_TABLE_STATS_FUNC */
/* RETURN NUMBER */
v_ret := SYS.DBMS_STATS.GATHER_TABLE_STATS_FUNC( OWNNAME => p_IN_param0 /* VARCHAR2 */,
TABNAME => p_IN_param1 /* VARCHAR2 */,
PARTNAME => p_IN_param2 /* VARCHAR2 */,
ESTIMATE_PERCENT => p_IN_param3 /* NUMBER */,
BLOCK_SAMPLE_STR => p_IN_param4 /* VARCHAR2 */,
METHOD_OPT => p_IN_param5 /* VARCHAR2 */,
DEGREE => p_IN_param6 /* NUMBER */,
GRANULARITY => p_IN_param7 /* VARCHAR2 */,
CASCADE_STR => p_IN_param8 /* VARCHAR2 */,
STATTAB => p_IN_param9 /* VARCHAR2 */,
STATID => p_IN_param10 /* VARCHAR2 */,
STATOWN => p_IN_param11 /* VARCHAR2 */,
NO_INVALIDATE_STR => p_IN_param12 /* VARCHAR2 */,
STATTYPE => p_IN_param13 /* VARCHAR2 */,
FORCE_STR => p_IN_param14 /* VARCHAR2 */,
OPTIONS => p_IN_param15 /* VARCHAR2 */);
/* PROCEDURE SYS.DBMS_STATS.GATHER_TABLE_STATS_AUTONOMOUS_TXN */
SYS.DBMS_STATS.GATHER_TABLE_STATS_AUTONOMOUS_TXN( OWNNAME => p_IN_param0 /* VARCHAR2 */,
TABNAME => p_IN_param1 /* VARCHAR2 */,
DEGREE => p_IN_param2 /* NUMBER */);
SYS@CDB$ROOT>4.3 查询DDL同时可导出
SYS@CDB$ROOT> help ddl
Generates the code to reconstruct the selected object.
Use the result type for materialized views.
Use the save parameter to save the DDL in a file.
DDL <object_name> [<object_type>] [SAVE <file_name>.sql]
Usage:
ddl {PARAMETERS}
Parameters:
<object>
Name of the database object you want to get its description.
<objecttype>
[OPTIONAL] Type of the resultant object. Values with spaces need to be quoted.
Example: package_body or "package body" will both work.
<save>
[OPTIONAL] Save the content of the buffer to a SQL script.
<filename>
[OPTIONAL - SAVE required] File name where the content is saved.
More help topics:
DDL EXAMPLES
DDL SYNTAX
SYS@CDB$ROOT> ddl departments3;
CREATE TABLE "SYS"."DEPARTMENTS3"
( "DEPT_ID" NUMBER(*,0) GENERATED BY DEFAULT ON NULL AS IDENTITY MINVALUE 1 MAXVALUE 9999999999999999999999999999 INCREMENT BY 1 START WITH 1 CACHE 20 NOORDER NOCYCLE NOKEEP NOSCALE NOT NULL ENABLE,
"DEPT_NAME" VARCHAR2(50) NOT NULL ENABLE,
"LOCATION" VARCHAR2(100),
"BUDGET" NUMBER(12,2),
PRIMARY KEY ("DEPT_ID")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "SYSTEM" ENABLE
) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255
NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
TABLESPACE "SYSTEM" ;
SYS@CDB$ROOT>5.生态集成
- - 内置 Liquibase
- - 云存储直连（OCI/Azure/AWS）
- - Docker 容器友好
# 使用 Liquibase 进行数据库版本控制
lb update -changelog-file schema.xml
6. 占用的资源和依赖：
- 1.Java 依赖（需 JDK 8+）
- 2.内存占用高于 SQL*Plus
- 3.部分传统 DBA 脚本需调整语法
7. 功能对比sqlplus、sqlcl、sqldeveloper
| 特性 | SQL*Plus | SQLcl | SQL Developer |
| 安装复杂度 | 需完整客户端 | 免安装 | 需 GUI 安装 |
| 内存占用 | 5-10MB | 100-300MB | 500MB+ |
| 自动补全 | ❌ | ✅ 智能补全 | ✅ 图形化补全 |
| 输出格式化 | 基础表格 | 10+种格式 | 可视化导出 |
| 版本控制 | ❌ | ✅ Liquibase 集成 | ✅ Git 集成 |
| 云服务集成 | ❌ | ✅ 原生支持 | ✅ 需插件 |
| 脚本兼容性 | ✅ 100% | ✅ 95% | ❌ 部分不兼容 |
| 23ai 特性支持 | ❌ | ✅ 完整支持 | ✅ 需新版 |
