# `Sp_Sis_GetConst` (procedure)

> 获取常量存储过程


- **Type:** PROCEDURE
- **Deterministic:** NO
- **SQL data access:** CONTAINS SQL

## Parameters

| # | Mode | Name | Type |
|---|---|---|---|
| 1 | IN | `sStr` | `varchar(100)` |
| 2 | OUT | `sReturn` | `varchar(4000)` |
| 3 | IN | `sGuid` | `varchar(100)` |
| 4 | IN | `sBrId` | `varchar(100)` |
| 5 | IN | `sSuId` | `varchar(100)` |

## Body

_Body is not pre-cached. To inspect: `mysql --defaults-file=~/.my.cnf -e 'SHOW CREATE PROCEDURE `Sp_Sis_GetConst`'`._

## Narrative

**Business context:** 系统工具 — i18n constant lookup. Resolves a logical message key (`sStr`) to the localised string the caller should surface to the user. Procedure twin of the function `Fun_Sis_GetConst`; widely used by audit/check/btn-event procs to emit translated error / status messages ("请选择数据", "Working", "paramsErro", …).

**What it does:** Reads `SysSystemSettings.CbxLanguage` (defaulting to `sChinese`) for the tenant, builds a dynamic `SELECT <lang_column> INTO @sReturnValue FROM gdsformconst WHERE 1=1 [AND sParentId='sGuid'] [AND sName='sStr'] LIMIT 1`, executes via `PREPARE`/`EXECUTE`, then returns `@sReturnValue` in `sReturn`. Falls back to the raw `sStr` if no row matches. `sGuid` scopes the lookup to a particular constant namespace; passing `''` is normalised to `'100'`.

**Invocation:** Called via `CALL Sp_Sis_GetConst(...)` from 488 other DB routines (sample: `Sp_AfterPost_sQtt`, `Sp_Bill_Used`, `Sp_BtnEventCalculatewages`, `Sp_BtnEventDepartSure_New`, every `Sp_Supply_*` btn-handler, `Sp_Sis_CopeEventList`, etc.). Not directly invoked from xly-src Java — the Java layer uses the function `Fun_Sis_GetConst` for the same purpose. Status: live core utility.